Abstract
No vaccine exists against any form of leishmaniasis. Because recovery from infection is usually accompanied by a strong immunity and because it is possible to protect experimental animals against live challenge, hope for the development of a vaccine for humans has been high. However, leishmaniasis is a disease of the poor and the market for a vaccine is very limited. Until a few years ago, with minimal resources, only a pragmatic approach was possible for testing the first-generation vaccines (i.e. killed whole parasites). Recently, funding has become available for developing defined second-generation vaccines, including recombinant proteins and DNA constructs. With new adjuvants also being developed there is new hope, and several new vaccines are in development against leishmaniasis.
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