| the advantages of mosquito biocontrol by stocking edible fish in rice paddies. | edible fish stocked in rice fields at a density of 600-800 fry per mu (1 mu = 1/15 hectare) for 150-170 days may act as an effective mosquito biocontrol agent. common carp (cyprinus carpio), grass carp ctenopharyngodon idella) and tilopia spp. killed late stage larvae and pupae of anopheles sinensis and culex tritaeniorrhyncus in laboratory and field trials. stocking of fish in experimental rice fields decreased larval numbers significantly in comparison with control areas. expansion of fish sto ... | 1991 | 1818398 |
| [comparative studies on the role of anopheles anthropophagus and anopheles sinensis in malaria transmission in china]. | this paper reports on the studies of the role of anopheles anthropophagus and anopheles sinensis in malaria transmission in a sense to elucidate which one of the two species the predominance in this respect. systematic investigations including artificial infection of mosquitoes, quantitative entomological studies and parasitological research were conducted in 1982-1987 in 5 pilot areas in anhui (1), guangxi (2), sichuan (1) and guangdong (1). the results revealed that the susceptibility of an. a ... | 1990 | 2276188 |
| evaluation of permethrin-impregnated mosquito-nets against mosquitoes in china. | in yishan county, guangxi province, china, where malaria and brugian filariasis are transmitted by vectors belonging to the anopheles hyrcanus pallas group, a study was conducted from june to november 1986 to evaluate the effectiveness of permethrin-impregnated mosquito bednets to reduce man/vector contact. in three experimental villages a total of 246 mosquito nets were treated with permethrin ec at a dosage of 0.5 g/m2. control bioassays (1 h exposure) of treated nets gave up to 100% mortality ... | 1988 | 2908784 |
| [experience in the consolidation measures in the final stage of malaria eradication in daxin county, guangxi]. | | 1988 | 3289789 |
| [geographical distribution of anopheles lesteri anthropophagus and its role in malaria transmission in guangxi]. | | 1987 | 3652409 |
| [investigation on population composition and nocturnal activities of anopheles in two prefectures in bose, guangxi]. | | 1983 | 6678677 |
| field evaluation of bednets impregnated with deltamethrin for malaria control. | trials were undertaken in a hypoendemic area of malaria in an area bordering vietnam, in napo county of guangxi zhuang autonomous region, china. the aim was to compare the relative cost effectiveness of ddt residual spraying and of bednets impregnated with deltamethrin in the malaria control program. the trials were divided into three subgroups: (1) two farming areas and one coal mining area with a total population > 20,000, where the trial consisted of mass bednets impregnated with deltamethrin ... | 1993 | 7939937 |
| genetic differentiation among three populations of anopheles minimus of guangxi and yunnan provinces in the people's republic of china. | electrophoretic studies were carried out on isozymes of 3 populations of anopheles minimus collected from guangxi and yunnan provinces of the people's republic of china in 1993. eight proteins were analyzed by 5% polyacrylamide gel electrophoresis. the most variable population, y-f, was highly polymorphic at 14 of 20 loci (p=0.700) with an average heterozygosity h of 0.340. p values of 0.500 and 0.700, and h values of 0.220 and 0.210 were obtained for each from 'guangxi-lab' (gx-l) and 'yunnan-l ... | 1996 | 9253891 |
| genetic differentiation among three populations of anopheles minimus of guangxi and yunnan provinces in the people's republic of china. | electrophoretic studies were carried out on isozymes of 3 populations of anopheles minimus collected from guangxi and yunnan provinces of the people's republic of china in 1993. eight proteins were analyzed by 5% polyacrylamide gel electrophoresis. the most variable population, 'yunnan-field' (y-f), was highly polymorphic at 14 of 20 loci (p = 0.700) with an average heterozygosity h of 0.340. p values of 0.500 and 0.700, and h values of 0.220 and 0.210 were obtained for each from 'guangxi-lab' ( ... | 1997 | 9444039 |
| molecular and morphological studies on the anopheles minimus group of mosquitoes in southern china: taxonomic review, distribution and malaria vector status. | mosquitoes of the anopheles minimus group (diptera: culicidae) from nine provinces of southern china were identified morphologically and by molecular characterization, using single-strand conformation polymorphisms (sscps) and sequence data for the d3 region of the 28s ribosomal dna and the mitochondrial coii locus. species a and c (sensu green et al., 1990) of the an. minimus complex were found to be sympatric in yunnan province. species a occurs eastward from yunnan through southern guangxi, h ... | 2002 | 12243226 |
| [malaria situation in the people's republic of china in 2002]. | this summary was made on the basis of the annual reports of malaria control from the professional institutions in the 21 provinces/municipality/autonomous region (p/m/a). the number of malaria cases reported in the country was 35,298 in the year 2002 and the incidence rate was 0.348/10,000, an increase of 68.2% than that of the last year and the largest increase since 1994. the total number of suspected cases was 136,902, and the death toll due to malaria was 42. based on the numbers of malaria ... | 2003 | 14628361 |
| molecular variation and phylogeny of the anopheles minimus complex (diptera: culicidae) inhabiting southeast asian countries, based on ribosomal dna internal transcribed spacers, its1 and 2, and the 28s d3 sequences. | anopheles minimus (theobald) is one of the most important vectors of human malaria in southeast asia. morphological studies now have revealed five sibling species as its complex, designated as species a to e. the present study investigated the genetic divergence among an. minimus populations from four countries (japan, china, thailand and indonesia), based on the dna sequences data of the d3 (the third domain of the 28s ribosomal gene) and its2 (the second internal transcribed spacer of the ribo ... | 2003 | 15115086 |
| [malaria situation in the people's republic of china in 2003]. | total 40,681 malaria cases and 129,147 suspected cases with 52 deaths were reported by the case reporting system in 910 counties of 21 provinces/municipality/autonomous region (p/m/a) in 2003, and the annual incidence was 0.39/10000, an increase of 15.3% than that of the last year, which is the third year that malaria incidence consecutively increased since 2001. based on a baseline survey in the project funded by the global fund to fight aids, tuberculosis and malaria (gfatm), the estimated num ... | 2005 | 16566200 |
| [malaria situation in the people' s republic of china in 2004]. | in 2004, 38,972 malaria cases and 106,704 suspected cases with 31 deaths were reported by the annual case reporting system in 1,005 counties of 23 provinces/municipality/autonomous region (p/ m/a) and the annual incidence was 0.38/10 000, a decrease of 4.2% than that of the last year, which is the year that the disease was slightly rolled back after consecutively increased since 2001. as an important development of the case reporting system, the internet reporting system started in 2004, majorit ... | 2006 | 16866130 |
| [observation on polytene chromosomes of the ovarian nurse cell of anopheles minimus from yuanjiang]. | anopheles minimus collected from yuanjiang, yunnan province, were bred with standard methods in lab. the ovarian nurse cells of a.minimus were separated and stained, and the whole polytene chromosomes were photographed under light microscope and compared with a.minimus from guangxi. 365 samples of ovarian nurse cells were observed. the chromosomes included one telocentric sex-chromosome x, two submetacentric autosomes ii (autosome ii right arm, 2r and autosome ii left arm, 2l) and two metacentri ... | 2006 | 17094623 |