| a survey of filariasis among refugees in south florida. | between january 1981 and march 1982, a filariasis survey was conducted among 668 haitian immigrants and 155 southeast asian refugees residing in florida, u.s.a. microfilariae were detected only in haitians, with 6.7% positive for wuchereria bancrofti and 1.3% positive for mansonella ozzardi. the majority of individuals with bancroftian filariasis came from five coastal urban areas including port-au-prince, duvalierville, gonaïves, leógane and cap-haitien. no unequivocal signs of bancroftian fila ... | 1984 | 6370004 |
| mansonella ozzardi in haiti ii. arthropod vector studies. | the present vector studies show that the biting midge, culicoides furens, serves as an intermediate host for mansonella ozzardi in haiti. a total of 3,430 c. furens were collected as they engorged on infected individuals. under the maintenance conditions described herein, the microfilaria required 9 days to reach the infective stage. approximately 43% of the midges survived, and from these 1,128 infective stage larvae were collected. this represents an overall infection rate of 0.76 larva per mi ... | 1981 | 7020451 |
| [filariasis in haiti: a century of history]. | wuchereria bancrofti and mansonella ozzardi are both endemic in haiti. over the last hundred years, these human parasites have been by turn investigated and disregarded. between 1894 and 1914, haitian physicians encouraged by dr. léon audain studied the clinical and biological impact of w. bancrofti in the numerous infested patients in port-au-prince. during the american occupation (1915-1934), the presence of m. ozzardi was recognized by a rockefeller mission and a first investigation of filari ... | 1999 | 10690476 |
| [absence of response of mansonella ozzardi microfilaria in the diethylcarbamazine provocation test]. | one hundred and twelve inhabitants of an area endemic for m. ozzardi received 20 cmm capillary blood samples by finger prick before and 30 minutes after the ingestion of 100 mg of diethylcarbamazine citrate. no significant variations in microfilaremia were detected. thus, a provocative dose of dec would not appear to be helpful in sampling for mansonellosis in haiti. | 1983 | 6347418 |
| comparative morphology of mansonella ozzardi microfilariae from colombia and haiti. a light microscope study. | comparative morphological studies were conducted at the light microscope level to determine whether any difference could be detected in thin smears, thick smears, or knott samples, between colombian (simuliid-transmitted) and haitian (culicoid-transmitted) mansonella ozzardi microfilaria. results indicated that the microfilariae from these two geographical areas are essentially identical. the small differences observed in the dimensions of microfilariae in thick and in thin smears can be attribu ... | 1983 | 6189271 |
| mansonella ozzardi in haiti. iv. evaluation of antibody reactivity to heterologous antigens. | sera from individuals in an area of haiti endemic for mansonella ozzardi were analyzed for reactivity to antigens of brugia pahangi, dirofilaria immitis, mansonella llewellyni or ascaris lumbricoides using either an enzyme-linked immunosorbent assay or an indirect immunofluorescent antibody test. igm and igg reactivity to all antigens was observed with sera from both microfilaremic and amicrofilaremic individuals when compared to reactivity of sera from individuals from nonendemic areas. antibod ... | 1986 | 3513647 |
| clinical evaluation of mansonella ozzardi in haiti. | the clinical evaluation of 150 individuals in bayeux, haiti, revealed no significant morbidity that could be attributed to infection with mansonella ozzardi. however, the distribution of patent infections and their microfilaria density were significantly affected by the age and sex of the individuals. also, the eosinophilic response was associated with the intensity of the microfilaremia when age was considered as a co-variable. the microfilaria rate was significantly higher in certain occupatio ... | 1989 | 2772513 |
| mansonella ozzardi in haiti. iii. a comparison of the sensitivity of four sampling methods in detecting infections. | a study to compare the sensitivity of four sampling methods in detecting mansonella ozzardi among 133 inhabitants of bayeux, haiti, is reported. the knott method proved the most sensitive with 40 microfilaria carriers detected. no additional infections were revealed by the other sampling methods. this was followed in order by 20 mm3 thick films of earlobe blood (34 cases), finger-prick blood (32 cases in the first sample), and skin biopsy (14 cases from paired samples). the combination of three ... | 1982 | 7041666 |
| mansonella ozzardi in haiti. i. epidemiological survey. | a survey of 1,165 inhabitants of bayeux, haiti revealed that 16% were infected with mansonella ozzardi. this was determined from a single 20 mm3 sample of finger prick blood from each individual. amont children and young adults (< 20 years of age), fewer than 2% had detectable microfilaremias. beyond this age the prevalence of infection for males and females was 49% and 24%, respectively. the microfilariae circulate in the peripheral blood with no significant periodicity. in general, the microfi ... | 1980 | 6969037 |
| mansonella ozzardi: a redescription with comments on its taxonomic relationships. | mansonella ozzardi is redescribed from adult worms collected from the subcutaneous tissues of patas monkeys (erythrocebus patas) infected with a haitian strain of the filaria. the worms are small and very slender; females measure about 49 mm in length by 0.15 mm in diameter and males, 26 by 0.07 mm. haitian (caribbean) and colombian (amazon) forms of the filaria are morphologically identical, as are their microfilariae. mansonella is most closely related to tetrapetalonema. based on taxonomic pr ... | 1982 | 6756178 |
| assessment of leptoconops bequaerti as a potential vector of mansonella ozzardi in haiti. | experimental studies in bayeux, haiti showed that the biting midge, leptoconops bequaerti, is capable of supporting the complete development of mansonella ozzardi but only on a very limited scale. this suggests that the species may not be involved in the natural transmission cycle despite its abundance and pestiferous nature in certain areas of haiti. a midge-holding container is described which markedly enhanced the survival of engorged l. bequaerti in the laboratory. | 1983 | 6625054 |