BACKGROUND In view of the massive rural-to-urban migration in Nigeria, investigations on transmission of urinary schistosomiasis were carried out in urban and semi-urban communities in Nike Lake area of Enugu State, Nigeria. METHODS Urine samples of school children were tested for micro-haematuria using reagent strips followed by microscopic examination for Schistosoma haematobium eggs. Water...

S. haematobium was first discovered in Sierra Leone in 1909 [1,2], and S. mansoni was later discovered in 1934 in the north of the country [1]. Recovered snail samples included both Bulinus globosus and Biomphalaria pfeifferi [1]. Peak transmission of schistosomiasis takes place at the beginning of the dry season, when water levels and habitat conditions are most suitable for snail hosts [1]. A...

BACKGROUND The last study on snail population density in relation to rainfall pattern in Kigungu canoe landing and recreational sites on Lake Victoria shore was earlier carried out about fifteen years ago. This study also reviewed the influence of other environmental factors on the snails' infection rate. OBJECTIVE To reassess the density dynamic of Biomphalaria (B) choanomphala and Biomphala...

BACKGROUND Given that increase in temperature may alter host-parasite relationships, the anticipated rise in temperature due to global warming might change transmission patterns of certain diseases. However, the extent to which this will happen is not well understood. METHODS Using a host-parasite system involving Bulinus globosus and Schistosoma haematobium, we assessed the effect of tempera...

Some factors influencing the epidemiology of urinary schistosomiasis were studied at Ifakara between 1978 and 1980. Ifakara is situated in the fertile plain of the Kilombero river in the south-eastern part of Tanzania. The overall prevalence of Schistosoma haematobium infection among primary school children (6-19 years) in the Ifakara agglomeration was 21% (730/3478). The highest prevalence was...

Schistosoma mattheei ova were collected from cattle in different localities in South Africa and after hatching, miracidia were used to infest Bulinus (Physopsis) globosus. Cercariae harvested from these snails were used to infest the definitive host Praomys (Mastomys) coucha and eggs from the resulting female S. mattheei were collected. These ova were compared with a Schistosoma haematobium X S...