Dengue 3 virus infection of Aedes albopictus and Aedes aegypti: comparison of parent and progeny candidate vaccine viruses

Schoepp, R.J.; Beaty, B.J.; Eckels, K.H.

American Journal of Tropical Medicine and Hygiene 42(1): 89-96

1990


ISSN/ISBN: 0002-9637
PMID: 2301711
Document Number: 353737
DEN-3 parent (strain CH53489) and progeny candidate vaccine (clone 24/28) viruses were compared in their abilities to interact with Aedes aegypti and Ae. albopictus. The parent and progeny virus were equivalent in their ability to infect, to replicate in, and to be transmitted by both species of mosquitoes. The candidate vaccine DEN-3 clone was temperature sensitive and had small plaque morphology. These phenotypic markers remained stable during mosquito passage. Thus, temperature sensitivity and small plaque morphology are not reliable biological markers for attenuation.AS/C.J. Leake DEN-3 parent (strain CH53489) and progeny candidate vaccine (clone 24/28) viruses were compared in their abilities to interact with A. aegypti and A. albopictus. The parent and progeny virus were equivalent in their ability to infect, to replicate in, and to be transmitted by both species of mosquitoes. The candidate vaccine DEN-3 clone was temperature sensitive and had small plaque morphology. These phenotypic markers remained stable during mosquito passage. Thus, temperature sensitivity and small plaque morphology are not reliable biological markers for attenuation.

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