Publications

leishmania braziliensis: dissemination of panamanian strains in golden hamsters.		1979	510440
echinococcus vogeli in man, with a review of polycystic hydatid disease in colombia and neighboring countries.	three cases of polycystic hydatid disease (phd) from colombia are reported and 11 others from the region are reviewed. when cysts from two patients were fed to a dog and an ocelot about 250 mature and gravid specimens of echinococcus vogeli and two poorly developed strobilae, respectively, were recovered. these human cases constitute the first record of the larval stage of e. vogeli, previously known only from the strobilar stage in the type host, the bush dog (speothos venaticus). based on the ...	1979	572148
epidemiological patterns of cutaneous leishmaniasis in panama. iii. endemic persistence of the disease.	endemic persistence of cutaneous leishmaniasis is described in el aguacate, a community established in the forest of central panama about 75 years ago. physiographic pecularities partially isolate el aguacate from other villages in the region. some of the original forest environment has been preserved and man-biting species of phlebotomine sandflies were abundant as was the two-toed sloth, choloepus hoffmanni, the principal reservoir host of leishmania braziliensis in panama. the inhabitants, as ...	1976	816214
natural cutaneous leishmaniasis among dogs in panama.	a search for cutaneous leishmaniasis among dogs was conducted in several forest settlements of central panama from 1968 to 1973. a total of 11 (3.3%) of 333 animals examined was found infected and, in 9 of these, parasites were isolated in culture and characterized as leishmania braziliensis. infected dogs occurred in three settlements, one of which was free of human leishmaniasis. in the latter case, infections were acquired in the nearby forest during hunting excursions. ulcerated skin lesions ...	1976	943961
epidemiological patterns of cutaneous leishmaniasis in panama. i. epidemics among small groups of settlers.	epidemic of cutaneous leishmanniasis among a small group of people established in a panamanian forested area was studied. the first settlers arrived in june 1971, and by june 1973 there were 37 persons, 33 of whom had no previous history of the disease. epidemiological surveys were made in june 1973 and march 1974. the disease developed in 14 (42.4%) of the 33 susceptible persons by june 1973, with an exposure time ranging from one to 14 months. the last case occurred in april 1973, and no new c ...	1976	1267510
epidemiological patterns of cutaneous leishmaniasis in panama. ii. incidental occurrence of cases in non-endemic settlements.	epidemiological studies on cutaneous leishmaniasis were carried out in a settlement in the bayano region, republic of panama, during 1971-72. this settlement was established about 12 years earlier for the purpose of cattle raising by small groups of settlers. the primary forest was cut and cleared and the area planted with grass. the presence of active cases of cutaneous leishmaniasis among humans and animals, both domestic and ferals, was investigated. in addition, phlebotomine sandflies were c ...	1976	1267511
[current status of brucellosis, tuberculosis, rabies and cysticercosis in central america and panama].		1967	4233432
ecologic studies of vesicular stomatitis virus. i. prevalence of infection among animals and humans living in an area of endemic vsv activity.		1969	4309413
the ecology and behavior of squirrel monkeys (saimiri oerstedi) in a natural forest in western panama.		1972	4631131
attractiveness of sentinel animals to vectors of leishmaniasis in panama.		1973	4729738
detection of leishmanial activity in nature by means of sentinel animals.		1973	4788764
observations on the life-cycle of echinococcus oligarthrus (diesing, 1863) in the republic of panama.		1969	4984494
use of sentinel animals in epidemiological studies of cutaneous leishmaniasis.		1971	5097860
[the cell line collection of the gorgas memorial laboratory].		1984	6149604
transmission of toxoplasma gondii in panama city, panama: a five-year prospective cohort study of children, cats, rodents, birds, and soil.	a cohort of more than 500 children from panama city, panama was studied prospectively over five years for acquisition of antibody to toxoplasma gondii. the direct agglutination test showed that 72 of 571 children seroconverted between one and six years of age, for a cumulative incidence of 12.6%. children were examined by pediatricians quarterly, and illnesses that had occurred in the interval and their activities were noted on questionnaires. thirty-eight variables were examined for their role ...	1995	7485703
[clinical, electrocardiographic and angiographic evaluation of natural reservoirs of chagas' disease in the republic of panama].	the authors studied two groups of natural animal reservoirs for trypanosoma cruzi: a wild one, the common rat rattus rattus and the house dog, canis canis. thirty one naturally infected rats were evaluated with a technique developed by the authors which allows the recording of the ecg and the performance of a ventricular angiogram without altering the functional capacity of the animal. forty four dogs were followed clinically for a period of twenty years to study the development of the cardiac l ...	1995	8668820
no screwworms allowed.		1999	10101404
genetically distinct dog-derived and human-derived sarcoptes scabiei in scabies-endemic communities in northern australia.	overcrowding is a significant factor contributing to endemic infection with sarcoptes scabiei in human and animal populations. however, since scabies mites from different host species are indistinguishable morphologically, it is unclear whether people can be infected from scabies-infested animals. molecular fingerprinting was done using three s. scabiei-specific single locus hypervariable microsatellite markers, with a combined total of 70 known alleles. multilocus analysis of 712 scabies mites ...	1999	10548286
seroepidemiology of bartonella vinsonii subsp berkhoffii exposure among healthy dogs.	to determine seroprevalence of antibodies to bartonella vinsonii subsp berkhoffii and risk factors for seropositivity among working dogs owned by the us government.	2001	11518174
eight-plasmid system for rapid generation of influenza virus vaccines.	the antigenic variation of influenza a virus hemagglutinin (ha) and neuraminidase (na) glycoproteins requires frequent changes in vaccine formulation. the classical method of creating influenza virus seed strains for vaccine production is to generate 6 + 2 reassortants that contain six genes from a high-yield virus, such as a/pr/8/34 (h1n1) and the ha and na genes of the circulating strains. the techniques currently used are time-consuming because of the selection process required to isolate the ...	2002	12163268
the roles of cats and dogs in the transmission of toxoplasma infection in kuna and embera children in eastern panama.	to examine the relationship between antibody status and various hypothesized risk factors for toxoplasma gondii infection among two different amerindian populations in eastern panama. following up on earlier research that we conducted, we now explore the role of dogs in the natural transmission of toxoplasma, the role that dogs play in promoting transmission, the interactive effect of cats and dogs, and the accessibility of infective material to children.	2004	15507185
incidence of myiasis in panama during the eradication of cochliomyia hominivorax (coquerel 1858, diptera: calliphoridae) (2002-2005).	we present the results of a study on myiasis in panama during the first years of a cochliomyia hominivorax eradication program (1998-2005), with the aim of investigating the behavior of the flies that produce myiasis in animals and human beings. the hosts that registered positive for myiasis were cattle (46.4%), dogs (15.3%), humans (14.7%), birds (12%), pigs (6%), horses (4%), and sheep (1%). six fly species caused myiasis: dermatobia hominis (58%), phaenicia spp. (20%), cochliomyia macellaria ...	2007	17923994
feeding sources and trypanosome infection index of rhodnius pallescens in a chagas disease endemic area of amador county, panama.	the sylvatic triatomine rhodnius pallescens is considered to be the most important and widespread vector of trypanosoma cruzi and trypanosoma rangeli in panama. however, its behavior and biological characteristics have only been partially investigated. thus, to achieve sustainable and efficient control over chagas disease in panama, a better understanding of the ecology and biology of r. pallescens is essential. in this study we evaluated r. pallescens host feeding sources using a dot-blot assay ...	2008	18488091
spotted fever rickettsiae, ehrlichia and anaplasma, in ticks from peridomestic environments in panama.		2009	19456809
detection and identification of rickettsial agents in ticks from domestic mammals in eastern panama.	several outbreaks of rocky mountain spotted fever have occurred in recent years in colombian communities close to the border with panama. however, little is known about rickettsiae and rickettsial diseases in eastern panamanian provinces, the darien province and the kuna yala, located north of the endemic area in colombia. in 2007, 289 ticks were collected in several towns from dogs, horses, mules, cows, and pigs. dna was extracted from 124 dermacentor nitens, 64 rhipicephalus sanguineus, 43 amb ...	2009	19645289
rickettsial infection in domestic mammals and their ectoparasites in el valle de antón, coclé, panamá.	the present research evaluated the presence of rickettsia spp. on ectoparasites of horses and dogs (using pcr techniques), and their sera (using immunofluorescence assay) in el valle de antón town in panama. a total of 20 horses and 20 dogs were sampled, finding four species of ectoparasites on dogs (the ticks rhipicephalus sanguineus, amblyomma ovale, amblyomma oblongoguttatum, and the flea ctenocephalides felis), and two tick species on horses (amblyomma cajennense and dermacentor nitens). dna ...	2010	21144663
prevalence of trypanosome infections in dogs from chagas disease endemic regions in panama, central america.	the prevalence of canine trypanosomosis was investigated in two chagas disease endemic rural communities located in the central region of panama. serologic tests for trypanosoma cruzi infection revealed a prevalence of 11.1%. hemocultures coupled with pcr analysis demonstrated a trypanosoma rangeli infection rate of 5.1%. an overall trypanosome infection index of 16.2% (16/99) was detected in this canine population. one dog had a mixed infection of t. cruzi and t. rangeli. six of the trypanosome ...	2011	21273002