Abstract
Summary
Guinea pigs inoculated intramuscularly with street virus can be protected by mustard inactivated fixed virus injected at the same time or 24 hours later, provided the virus has a high immunizing titer. These results give experimental proof that vaccine will protect after infection and also provide a test that could be used in evaluating vaccines for human use. If non-protecting amounts of vaccine or fixed virus are injected, the incubation period may be shorter and the death rate slightly higher than in the control animals receiving only street virus.
Get full access to this article
View all access options for this article.