1. Was the First Malaria Vaccine Tested in 1898?
- Author
-
Shanks GD
- Subjects
- History, 19th Century, History, 20th Century, Human Experimentation, Humans, Immunity, Innate, Immunization, India, Mississippi, Parasitemia therapy, Plasmodium vivax, Typhoid-Paratyphoid Vaccines immunology, Malaria prevention & control, Malaria Vaccines history, Malaria Vaccines therapeutic use, Typhoid-Paratyphoid Vaccines administration & dosage
- Abstract
Early trials of killed, whole-cell typhoid vaccine indicated a paradoxical, positive effect on malaria infections. British soldiers in India in 1898 reported > 90% decrease in malaria recurrences after receiving an investigational typhoid vaccine despite no intention or expectation to observe such an outcome. In the 1940s, multiple doses of intravenous typhoid vaccine appeared to control parasitemia and limit reinfection in three syphilis patients purposefully infected with Plasmodium vivax . Several modern vaccines (against human papillomavirus, hepatitis B virus, and malaria) use a detoxified lipid A derived from Salmonella as an immune adjuvant. Early typhoid vaccines could have plausibly functioned as an innate immune stimulus, leading to some protection against malaria.
- Published
- 2019
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