Schistosomidical effects of praziquantel onSchistosoma mansoni infections at different stages of maturation in mice

No Abstract. The Nigerian Journal of Parasitology Vol. 23(1) 2002: 125-12

Chloramphenical sensitivity of Salmonella typhi in concurrent infection with adult Schistosoma mansoni in mice

Nigerian Quarterly Journal of Hospital Medicine Vol.10(1) 2000: 13-1

Schistosoma Mansoni: Post-aestivation studies on the Fecundity and Growth of Infected and Uninfected Biomphalaria pfeifferi

First generation of laboratory bred Biomphalaria pfeifferi measuring approximately 8mm in diameter were collected and grouped into four batches. Batches 1, 2 and 3 consisted of uninfected snails aestivated for 7, 14 and 21 days respectively. The fourth group had snails which been infected with Schistosoma mansoni miracidia and then aestivated 7 days post miracidial exposure, for one week. Results obtained showed that there was a significant increase in the growth of reactivated infected and uninfected snails. Weekly monitoring of fecundity showed that ovipository activity was lower among the infected group of snails. A higher level of egg production was also seen in reactivated snails than in the unaestivated B. pfeifferi. Key Words: Schistosoma mansoni, aestivation, fecundity and growth Nig. J. Health and Biomed. Sciences Vol.2(2) 2003: 98-10

Laboratory studies on the capability of Biomphalaria pfeifferi (Krauss), intermediate host of Schistosoma mansoni to survive desiccation

Four age groups of Biomphalaria pfeifferi were subjected to laboratory desiccation and allowed to aestivate for 7,14,21 and 28 days before being revived. Also, B. pheifferi specimens harbouring schistosomal infection were also subjected to laboratory desiccation and aestivated for 7, 14, 21 and 28 days. Uninfected specimen aestivated for the same number of days respectively were use for control experiments. All four age group were found to have been able to withstand some period of desiccation. Juvenile snails were found to be better aestivators. Infected counterparts, they could not survive for more than 28 days of the desiccation of their habitat. The Nigerian Journal of Parasitology Vol. 24 2003: 173-17