salmonella ochiogu: experimental infection of laboratory rats (rattus rattus).oral infection of experimental rats with 10(8) colony forming units of salmonella ochiogu resulted in clinical salmonellosis in 42 of 98 (43%) rats and a carrier state in 56 of 98 (57%). infection was characterized by septicaemia, pneumonia and loss of condition. organisms were shed in faeces on the first day after infection and cultures of most visceral organs revealed good systemic dissemination of the serotype, which was pathogenic to experimental rats.19853999688
evaluation of coumatetralyl against two predominant murid species.coumatetralyl was evaluated in the laboratory against bandicota bengalensis and rattus rattus. feeding tests with 0.0375% coumatetralyl baits produced 100% mortality after a single day feeding period in b. bengalensis and after a 10-day period in r. rattus. the anticoagulant bait is less palatable in comparison to plain bait. in the case of r. rattus, lfp50 and lfp98 and their 95% confidence limits were 3.89 (2.62-5.77) days and 11.22 (6.1-20.65) days respectively. median period of survival and ...19854008919
a novel class of acetylcholinesterase, revealed by mutations, in the nematode caenorhabditis ace-2;ace-1 double mutants of the nematode c. elegans, where the major acetylcholinesterase (ache) classes a and b have been eliminated by mutation, the animals are viable and residual ache activity remains. this residual activity differs markedly from ache classes a and b; its km for acetylcholine is 1000-5000-fold lower, its resistance to eserine is 3000-260,000-fold higher, it is markedly more thermolabile, and it can be separated from classes a and b by ion exchange chromatography. it has ...19854020535
[experimental deratization on a commercial swine-breeding farm].continuous eighth-month deratization was carried out on an industrial swine breeding complex, having great numbers of the black rat (r. rattus). anticoagulants were chiefly used, maintaining permanent sites of poisonous baits. the lowering of rat numbers was followed up at two-month intervals in the individual productional sectors. some indices were determined, such as intensiveness, extensiveness, and effectiveness. it was found that each of these indices characterized particular aspects of the ...19854036000
topographic organization of facial motoneurons to individual pinna muscles in rat (rattus rattus) and bat (rousettus aegyptiacus).the location and number of motoneurons to individual pinna muscles were determined by retrograde transport of horseradish peroxidase in rat and flying fox. the degree of ear mobility differs considerably between these species in that rats perform simpler ear movements while flying foxes move their pinnae in a sophisticated way. five pinna muscles were investigated in each species. motoneurons lay within the medial subdivision of the facial motor nucleus extending over its entire rostrocaudal len ...19854056108
field evaluation of brodifacoum against rattus rattus and bandicota bengalensis in bombay. 19854078301
laboratory transmission of leishmania infantum to rattus rattus by the bite of experimentally infected phlebotomus perniciosus.the role of the sandfly species phlebotomus perniciosus parrot in laboratory transmission of leishmania infantum was investigated. one of the wild reservoirs of the disease, the black rat (rattus rattus), was used as vertebrate host. the parasite was transmitted by the bite of experimentally infected p. perniciosus to the black rat which, six months later, was infective to the same sandfly species. these experimental data confirm the role of p. perniciosus in the transmission of l. infantum, as ...19854082264
banding pattern analysis of polymorphic karyotypes in the black rat by a new differential staining technique. 19724115458
dna replication, g- and c-bands and meiotic behaviour of supernumerary chromosomes of rattus rattus (linn.). 19744135136
electrocardiographic changes in panamanian rattus rattus naturally infected by trypanosoma cruzi. 19744214454
herpesvirus infection in the black rat (rattus rattus). 19734349598
chromosomal identity of black rats (rattus rattus) from the galápagos islands, ecuador. 19744435115
anatomical, neurohistological and histochemical observations on tongue of rattus rattus rufescens (indian black rat) as revealed by cholinesterase technique. 19744444774
studies on the karyotype and serum transferrin in the ceylon black rat, rattus rattus, having 40 chromosomes. 19744448104
patterns of dental caries in osborne-mendel and nih black rats in relation to length of the caries test period. 19724506561
pathological features of trypanosoma cruzi infections of rattus rattus. 19734575168
comparative neurohistological observations on the intrinsic innervation of islets of langerhans in gallus domesticus (white leghorn) and rattus rattus rufescens (indian black rat). 19744604247
[to what period does the rat (rattus rattus) date back in europe?]. 19744619054
similarity in karyotypes of rattus rattus with 38 chromosomes from india and other parts of the world. 19724638928
female prostate in the house rat rattus rattus. 19724639719
endophenotype of mysore (south india) population of the black rat (rattus rattus l.). 19724654228
litter stimulus factors in maternal retrieval (rattus rattus). 19734748752
studies on rodent chromosomes. co-existence of rattus rattus with 38 and 42 chromosomes in south western india. 19734764761
[effect of diet during pregnancy on the enzymatic differentiation process of the intestinal epithelium in white rat fetuses (rattus rattus l. albino)]. 19734766438
a comparative study on tyrosine metabolism in the livers of albino and black rats. 19734792955
comparative histochemical and biochemical studies on the skin of albino and black rats. 19734793246
breeding and genetics of black rat, rattus rattus. 19734807721
cytogenetical survey of black rats, rattus rattus, in southwest and central asia, with special regard to the evolutional relationship between three geographical types. 19744837970
oceanian type black rats (rattus rattus) with a subtelocentric m2 chromosome and c-type transferrin obtained from north america. 19744847653
presumptive x monosomy in black rats from malaya. 19714937212
[studies on forest reservoirs and vectors of trypanosoma cruzi. ix. natural infection of rattus rattus (lin., 1758) with a trypanosoma resembling t. cruzi]. 19654954498
[preliminary serologic investigation on plague enzootic in rattus rattus in madagascar]. 19654959454
natural infection of rattus rattus by trypanosoma cruzi in panamá. 19704989282
new evidence of a 38-chromosomes karyotype in south american populations of the roof rat, rattus rattus l. (rodentia, muridae). 19725020368
hoplopleura blanfordi sp. n. and polyplax blanfordi sp. n. (anoplura: hoplopleuridae) parasitizing rattus (rattus) blanfordi (thomas) (rodentia: muridae). 19725022877
supernumerary (b-) chromosomes in the malayan house rat, rattus rattus diardii (rodentia, muridae). 19725025665
reproductive parameters in rattus rattus and rattus exulans of hawaii, 1968 to 1970. 19725074817
karyotypic differences of black rats, rattus rattus, collected in various localities of east and southeast asia and oceania. 19715088494
on the chromosomic polymorphism of rattus rattus l. a study on west-european populations. 19715132606
robertsonian changes in the chromosomes of a south african rat population (rattus rattus l.). 19715161397
fear response and aggressive behavior of hippocampectomized house rats. 19715165591
chromosome morphology of north american rattus rattus (l.) (muridae). 19715169474
genetic and environmental influences on dental caries in the osborne-mendel and the nih black rat. 19655226831
a serological survey of rodent plague in taiwan and offshore islands.serological surveys were made on individual sera of small animals trapped on taiwan and offshore islands. the animals were shrews of the species suncus murinus, and rats of the species rattus rattus and r. norvegicus. the tests showed that on makung in the peng-hu islands (pescadores), 66% of the shrews, 30% of the r. rattus and 15% of the r. norvegicus had passive haemagglutination titres with fraction 1 antigens in the range of 1:16 to 1:256, indicative of previous plague infections. these obs ...19685303332
rattus rattus as a research animal. anl-7635. 19695310837
complement with 38 chromosomes in 2 south anerican populations of rattus rattus. 19695357126
genetic polymorphism in the serum transferrin of rattus rattus. 19695365291
[susceptibility of rattus norvegicus and rattus rattus frugivorus from the city of recife to pasteurella pestis]. 19695376934
helminthic infection of the climbing rat. rattus rattus (linneaus, 1758) in u.a.r. 19695388092
[ixodes randrianasoloi sp. n. (ixodoidea, ixodidae) parasite of rattus rattus (rodentia) in madagascar]. 19695392667
the expression of cardiac output in the albino rat, rattus rattus. 19705421993
the karyotype of the black rat (rattus rattus l.). another population with a 38-chromosomes complement. 19705439623
seasonal periodicity of ectoparasites of rattus rattus tanezumi temminck from taiwan. 19705451048
rattus rattus l. n-, c-terminal amino acids of the main haemoglobin fraction. 19705479798
identification of polypeptide chains in some rodents. i. rattus norvegicus, rattus rattus, psammomys obesus. 19715542935
feeding patterns of rattus rattus and rattus exulans on eniwetok atoll, marshall islands. 19715545566
karyotypes and serum transferrin patterns of hybrids between asian and oceanian black rats, rattus rattus. 19715568666
frequency of chromosome polymorphism in rattus rattus collected in japan. 19715574763
centric fusion in the malayan house rat, rattus rattus diardii (rodentia, muridae). 19715581126
[effect of stress on alcoholic and water thirst behavior of london black rats]. 19675615532
effect of temperature on mitochondrial respiration in a hibernator (myotis austroriparius) and a non-hibernator (rattus rattus). 19685651278
aversion to strychnine sulfate by norway rats, roof rats, and pocket gophers. 19685666218
polyamines and glutathione in tissues of lactating rats (rattus rattus) and in the rd-3 adcites tumour. 19685751557
double mating: its use to study heritable factors in dental caries.when osborne-mendel female rats (white) were mated with both an osborne-mendel and an nih black rat male during the same breeding period, litters were born which contained both osborne-mendel (white) and crossbred (grey to black) offspring. the osborne-mendel and crossbred animals developed widely different levels of caries activity even though they were exposed to identical environmental conditions during the intrauterine, preweaning, and experimental periods. these findings are indicative of a ...19655827346
[some biologic aspects of leptospira sorex isolated from rattus rattus l]. 19635832124
selection in natural populations. v. indian rats (rattus rattus). 19665980115
the topographical arrangement of the striatoreticular tract in the rat (rattus rattus albus). 19665983682
heterogeneity of the haemoglobin of the black rat. rattus rattus. 19676075180
[experimental study of the permissivity of the wild rat (rattus rattus) of guadeloupe with regard to schistosoma mansoni. hypothesis on the role of this host in the dynamics of natural habitats (author's transl)].unlike the white laboratory rat, the wild rat (rattus rattus) of guadeloupe behaves as a permissive host with regard to schistosoma mansoni, at least during a certain number of successive passages. the study of the host-parasite relationship of this couple has enabled us to demonstrate a certain number of fundamental differences in relation to the data furnished by the white rat; the worm recovery rate tested in the 4th week is more than twice as high as in the white rat (32% vs 11%), the "self ...19806104424
isolation of hantaan virus, the etiologic agent of korean hemorrhagic fever, from wild urban rats.urban rats captured in seoul and four nearby korean cities were found to have immunofluorescent antibodies reactive with hantaan virus, the etiologic agent of korean hemorrhagic fever (khf). serum antibodies were detected in 13% from 477 rattus norvegicus and 11% of 47 rattus rattus. hantaan viral antigen was found in pulmonary tissues of 42 animals, and hantaan virus was recovered from 23 rats, all but two of which were r. norvegicus. wistar rats were qualitatively much more sensitive than apod ...19826127366
muroid virus nephropathies and muroid viruses of the hantaan virus group.hemorrhagic fever with renal syndrome (hfrs) came dramatically to the attention of western medicine in 1951 with the "new" disease becoming a major source of morbidity and mortality in american troops in korea. known there as epidemic hemorrhagic fever (ehf) or korean hemorrhagic fever (khf), it became apparent that it was the same disease as the endemic (epidemic) hemorrhagic nephroso-nephritis of the soviet far east and songo fever of the japanese army in manchuria. the conjecture that the mil ...19826134336
observations on the current status of plague endemicity in the western usambara mountains, north-east tanzania.epidemiological investigations were executed at 6 locations in the western usambara mountains in north-east tanzania from november 1980 to may 1982. rodent, human and dog sera were checked for agglutinating plague antibodies, using the passive haemagglutination test. fraction i plague antigen was similarly tested for in rodent organ macerates. bubo aspirates and rodent organ-smears were microscopically examined for plague bacilli. a total of 257 rodents and 191 fleas were collected. rattus rattu ...19836142635
inhibition of spermatogenesis in house rat (rattus rattus rufescens) following the administration of alpha- chlorohydrin.chronic administration of alpha-chlorohydrin (25 mg/kg body wt.) caused lesions in the testis of house rat. the changes in the germ cells were degenerative. the seminiferous tubules and leydig cell nuclear diameter were reduced. epididymal cell height was greatly reduced. the lumen was devoid of spermatozoa. alpha-chlorohydrin administration inhibited the synthesis of rna, protein, sialic acid in the testis and accessory sex organs. total cholesterol of the testis was increased. adrenal ascorbic ...19806162403
male contraception properties of a new synthetic steroid derivative (danazol) in rattus rattus rufescens.chronic administration of danazol (25 mg/kg body wt) caused lesions in the testes of rattus rattus rufescens. depletion of spermatocytes, spermatids and spermatozoa was conspicuous. impairment of leydig cell function was correlated with reduced cell size and depressed accessory sex organ weights. epididymal cell height was greatly reduced. the lumen was devoid of spermatozoa. danazol administration inhibited the synthesis of rna, protein, sialic acid in the testes and accessory sex organs. total ...19816164548
comparative properties of purified cytochrome p-448 from beta-naphthoflavone treated rats and rainbow trout.1. cytochrome p-448 from beta-naphthoflavone treated rainbow trout (salmo gairdnerii) liver was purified and compared to purified p-448 from beta-naphthoflavone treated rats (rattus rattus) and purified p-450 from phenobarbital induced rats. 2. the two p-448 forms had similar spectral properties, substrate specificity, sensitivity to inhibitors and regioselectivity in the metabolism of benzo(a)pyrene and testosterone. 3. rat and trout p-448 differed in apparent monomeric mol. wt (mr) by at least ...19836191918
[activation of natural tularemia foci of the field-meadow and steppe types on the territory of tula province 1977-1978].natural tularemia foci of the meadow and steppe type are extremely stable and become active in those years when the most favourable living conditions for rodents appear. for the first time during the last 30 years a great increase in the number of common voles, accompanied by widely spread epizooty covering the whole territory of the tula region, was observed. house mice, common field mice, harvest mice and black rats were also involved in this epizooty and 235 tularemia patients with all clinic ...19826211008
differences in spleen suppressor cell content in rats with progressing and regressing tumors.young new zealand black rats (less than 35 wk old) developed progressively growing tumors when given injections of cells from a syngeneic 3-methylcholanthrene (mca)-induced fibrosarcoma. spontaneous tumor regression occurred in animals more than 10 months of age. compared to the responses of spleen cells from age-matched controls, spleen cells from rats in which tumor progression was present progressor rats) showed decreased proliferative responses to concanavalin (con a), phytohemagglutinin (ph ...19826212710
changes in spleen cell proliferative responses and resistance to syngeneic tumor challenge in aging nbr zealand black rats are shown to have a mean longevity of 102.9 weeks. the 90%, 50% and 10% survival age are 81 weeks, 108 weeks and 126 weeks, respectively. resistance to syngeneic tumor challenge is significantly lower in young rats (3-35 weeks) and very old rats (126-140 weeks) compared to middle-aged rats (36-85 weeks). the in vitro spleen cell proliferative response to syngeneic tumor cells is decreased in old rats. no decrease is observed in spleen cell proliferation induced by the mito ...19836226837
intra- and interspecific variation of the mitochondrial genome in rattus norvegicus and rattus rattus: restriction enzyme analysis of variant mitochondrial dna molecules and their evolutionary relationships.restriction endonuclease analysis has revealed extensive mtdna polymorphism in two species of rats, rattus rattus and rattus norvegicus. sequence divergence values for the eight detected r. norvegicus variants range from 0.2% to 1.8% and for the eight r. rattus variants, from 0.2% to 9.6%. three of the most closely related r. norvegicus mtdna's appear to differ by deletions/insertions of about 4 base pairs apiece. restriction sites for seven enzymes have been mapped for 11 of these variants. the ...19816266911
5-nucleotidase in liver injury induced by heavy metals. a histochemical study.the alterations in the distribution of 5-nucleotidase being the indicator of the functional state of liver parenchyma have been determined histochemically in the rat (rattus rattus albino) after experimental poisoning with a few heavy metals viz. lead, mercury, cadmium, molybdenum, copper, and zinc that possess considerable environmental and nutritional significance. present results show that all these metals affected the distribution and activity of 5-nucleotidase that has been explained on the ...19816277778
a note on dysenzymia in the liver of rats fed on zinc, an essential metal.although zinc in traces is essential for the growth and well being of the animal, however a long-term treatment has been found equally toxic to the liver and kidney. present report describes its effects on few key enzymes viz. alkaline phosphatase, acid phosphatase, 5-nucleotidase, lipase, glucose-6-phosphatase, and cholinesterase in the liver of rat, rattus rattus albino. histochemical observations have provided visual evidences on zn-induced dysenzymia. the results have further been interprete ...19826298052
the independent evolution of two closely related satellite dna elements in rats (rattus).we have identified and determined the sequence and organization of a new rat satellite dna in rattus rattus, the roof rat. this satellite dna, which we call r. rattus satellite i', consists of tandem arrays of a 185 base pair (bp) repeat unit that we call a'. a' is 86% homologous to a 185 bp portion of the 370 bp repeat unit of the previously described rat satellite [pech et al. (1979) nucleic acids res. 7, 417-432] present in the common laboratory rat species, r. norvegicus. we can thereby dist ...19836298719
rat mitochondrial dna polymorphism: sequence analysis of a hypervariable site for insertions/deletions.three closely related variants of rat (rattus norvegicus) mtdna have been shown to differ in the number of t residues found in a run of ts (light strand) which spans the junction between the trnacys and trnatyr genes. the number of ts in the repeat varies from 6 to 8 in these dnas. another, less closely related, r. norvegicus variant has a run of 5 ts at this site and in the related species, rattus rattus, a run of 4 ts is found. in r. norvegicus mtdna runs of 5 as and 5 gs are found just to the ...19836314254
enzymological effects of hexavalent chromium in the rat attempt has been made to observe the effects of chromium on a few enzymes, viz. alkaline phosphatase, acid phosphatase, glucose-6-phosphatase and lipase, in the kidney of the rat (rattus rattus albino) by means of histochemical and biochemical criteria. administered as potassium chromate in the diet, it was found to inhibit the activity of these renal enzymes; moreover, characteristic differences were observed in their anatomic localization. the possible effects of chromium on the level of en ...19846329979
evidence for the extinction of plague in hawaii.plague (infection by yersinia pestis) was present in hawaii for the period 1899-1957 and caused at least 370 fatalities. the first infections came from immigrant commensal rats, probably rattus rattus and rattus norvegicus, on ships from the orient. both species were already established in hawaii and became the widespread local carriers of plague, supplemented by rattus exulans which had colonized the islands in ancient polynesian times. the flea xenopsylla vexabilis arrived with r. exulans, and ...19846364800
[effect of gluco- and mineralocorticoids on the structure and function of the insular apparatus of the pancreas in representatives of different classes of vertebrates].by means of histological, historadioautographical and biochemical methods the effect produced by disturbances in hormonal balance of the adrenal cortex (corticosteroids) on the islet apparatus of the pancreas in the lamprey (lampetra fluviatilis), the frog (rana temporaria), the tortoise (testudo horsfieldi), the pigeon (columbia livia), the white rat (rattus rattus) has been studied during autumn-winter period. chronic injections of hydrocortisone and desoxycorticosterone-acetate are used to ch ...19846385927
trypanosoma lewisi: in vitro oxygen uptake by parasites grown in albino and black rats.oxygen consumption of trypanosoma lewisi grown in albino and black rats was measured by the direct method of warburg. respiration rates in buffered ringer's solution, with and without glucose and in normal serum from the respective hosts, were determined for t lewisi grown in albino and black rats. significantly higher respiratory rates were obtained for trypanosomes grown in albino hosts: 31 percent higher in buffered ringer's solution with glucose and 26 percent higher in homologous t ...19846392572
detection of antibody against hemorrhagic fever with renal syndrome (hfrs) virus in sera of house rats captured in port areas of japan. 19836408289
the protective effects of edta against copper poisoning in rats with special reference to the kidney.this study reports on the protective effects of edta against copper poisoning with special reference to the kidney of the rat, rattus rattus (albino), observed by means of various parameters. the data obtained on the improvement in body weight and skeletal growth, and the reduction in the numbers of lesions and the amount of lipids, are evidence of the necrotropic and lipotropic behaviour of edta. the reversal of key enzymes reflects a repair in membranes. other pharmacotoxicological aspects of ...19836413446
mesostigmatid mites associated with three rattus species collected in rangoon, burma.examination of 909 female mesostigmatid mites of 247 samples collected from rattus rattus, r. norvegicus and r. exulans in rangoon, burma found 8 species present: laelaps echidnina, l. nuttalli, l. myonyssognathus, laelaps sp. a and b of allred 1970, l. wittei, liponyssoides muris and ornithonyssus bacoti.19806449081
species distribution of trombiculid mites on murine rodents in rangoon, burma.ectoparasite collections from over 12,000 commensal rodents and shrews in rangoon were examined. rattus rattus, r. norvegicus, r. exulans and bandicota bengalensis were found to host 12 species of trombiculid mites. ascoschoengastia indica was the most abundant trombiculid found representing 84% of the total sample of 15,000 chiggers. this species (a. indica) may be of considerable significance as a vector of murine typhus.19806449738
the presence of angiostrongylus cantonensis in viti levu, fiji.wild rats and molluscs were examined for angiostrongylus cantonensis infection on viti levu, fiji. a. cantonensis were recovered from 29.6% (16/54) of rattus rattus and 59.5% (25/42) of r. exulans. a. cantonensis-like larval nematodes were found in all of four slugs, laevicaulis alte, and ten of 20 unidentified land snails. the larvae developed to adult a. cantonensis in the pulmonary arteries of laboratory rats 40 to 42 days after ingestion. this is the first record of a. cantonensis in fiji.19846501855
the occurrence of salmonellae in house shrews and rats in ipoh, shrews (suncus murinus) and rats (rattus rattus diardii), trapped during a survey period from july 1978 to december 1979 and thereafter on a random basis, from residences within and outside the veterinary research institute, ipoh, malaysia campus, were bacteriologically examined for the presence of salmonellae. of the 55 shrews and 8 rats examined, 39 (71%) shrews and 2 (25%) rats were found positive. there were 46 salmonella isolates which included 5 dual infections. these were serotyped ...19846523172
investigation of possible zoonotic reservoirs of indian kala-azar.possible animal reservoirs of indian kala-azar were investigated during a recent outbreak of the disease; dogs, rattus rattus and bandicoota bengalensis were examined. microscopical and serological examinations were carried out and antileishmanial antibodies found in five out of 226 b. bengalensis.19846524994
some aspects of the epidemiology of cutaneous leishmaniasis in the al-kharaj area of saudi arabia.four hundred and thirteen patients with skin ulcers were clinically diagnosed as suffering from cutaneous leishmaniasis; 82 (approximately 20%) of these cases were confirmed microscopically. ulceration occurred mainly on the exposed parts of the body. of the total cases 69% were egyptian labourers, 14% saudis and the remaining 17% syrian, pakistani, yemeni or filippino. most of the saudi patients were children aged up to ten years. two rattus rattus collected during the study had skin ulceration ...19846532330
chronic pulmonary cryptococcosis in a rattus rattus from rabaul, papua new guinea.a wild rattus rattus trapped in rabaul, east new britain province, papua new guinea, was noted to have chronic, cystic pulmonary cryptococcosis. r. rattus is common in settlements in papua new guinea whereas pigeons, which have been suspected as a possible source of human cryptococcosis, rarely nest in villages in this country. if r. rattus was susceptible to chronic pulmonary cryptococcosis, because of its habit of nesting in roofs, it could serve as a possible vector of human cryptococcosis in ...19846533856
study on schistosoma sinensium in fang district, chiangmai province, thailand.a survey on human infection and possible natural definitive host of schistosoma sinensium was carried out in fang district, chiangmai province, north thailand, where tricula bollingi snails which harbour cercariae of s. sinensium inhabits. stool examination of the people in the two villages along the stream, where t. bollingi were found, was by formalin-ether concentration technique and by stoll's method. the stools were found to be negative for s. sinensium eggs. field rats were also trapped an ...19846542252
[muscular changes caused by suction drainage. scanning electron microscopy, transmission electron microscopy, light microscopy and morphometric studies of dorsal muscles of the rat (rattus rattus) using drainage].changes in the dorsal muscles of 22 rats (wistar), resulting from surgical drain, have been studied under different morphological aspects. the lumen of drains were obstructed after a short time. in the drains without using low pressure, erythrocytes and fibrin network were seen by scanning microscopical investigation. patent muscle fibres could be analyzed in the lumen of drain using negative pressure. they prevent the functional drain system. by the effect of surgical drains the fibres of dorsa ...19836623715
schistosoma incognitum and its zoonotic potential role in phitsanulok and phichit provinces, northern thailand.a study on schistosoma incognitum, a blood fluke of a variety of mammals, was conducted in different ecological conditions in phitsanulok and phichit, northern thailand. the intermediate host of s. incognitum in permanent water habitats studied, i.e; swamps and ditches is radix (lymnaea) auricularia rubiginosa. of 44,412 mollusks representing 13 different species collected from 24 water habitats studied, 7,186 were r. a. rubiginosa. s. incognitum infection rate in the snails was 2.1%. 483 rattus ...19836635754
leishmaniasis in tuscany (italy): vii. studies on the role of the black rat, rattus rattus, in the epidemiology of visceral leishmaniasis.the recent finding that four leishmania isolates from rattus rattus are enzymologically identical to l. infantum, aetiological agent of human and canine visceral leishmaniasis in the mediterranean area, has stimulated further research on the role of r. rattus in the epidemiology of visceral leishmaniasis in tuscany, italy. the present work has led to the following results: (a) r. rattus experimentally infected with l. infantum displayed a general resistance to the parasite, even though it appear ...19836636269
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