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2004 FEB 4 - (NewsRx.com & NewsRx.net) -- Autoclaved Leishmania donovani with BCG has prophylactic potential against experimental visceral leishmaniasis.
According to a study from India, "The prophylactic efficacy of autoclaved Leishmania donovani (ALD) and autoclaved L. major (ALM) - a heterologous vaccine developed against cutaneous leishmaniasis (used as a reference vaccine), along with BCG - was evaluated against L. donovani in hamsters (Mesocricetus auratus)."
"Animals were immunized with triple doses (21 days apart) of either ALD or ALM (1.0 mg) with or without BCG (0.1 mg) and challenged 21 days later with 1x10[superscript]6 L. donovani amastigotes intracardially," stated J. K. Srivastava and collaborators at the Central Drug Research Institute and the Sanjay Gandhi Post-Graduate Institute of Medical Sciences in India. "Animals immunized with ALM+BCG and ALD+BCG yielded 94.3% and 86.1% parasite inhibition respectively in comparison to the BCG only and unvaccinated controls. Fifty and 33.3% of the vaccinated animals (ALM+BCG and ALD+BCG respectively) were completely devoid of parasites when tested on day 45 post-challenge (p.c.) and survived till the experiment was terminated."
"The mean survival of ALM+BCG and ALD+BCG groups (animals harboring parasites) was longest (168 and 139 days respectively)," ...