Yellow fever now states that a single dose of vaccination is sufficient to confer lifelong immunity against yellow fever disease." The attenuated live vaccine stem 17D was developed in 1937 by Max Theiler. The World Health Organization (WHO) recommends routine vaccinations for people living in affected areas between the 9th and 12th month after birth. Up to one in four people experience fever, aches, and local soreness and redness at the site of injection. In rare cases (less than one in 200,000 to 300,000), the vaccination can cause yellow fever vaccine-associated viscerotropic disease, which is fatal in 60% of cases. It is
Gertrud Theiler Africa, was named after Dr. Theiler in honor of the many years she dedicated to the collection. The argasid tick "Argas theilerae" (Hoogstraal and Kaiser, 1970), "Theiler's African white-backed vulture argasid," and the ixodid tick "Rhipicephalus gertrudae" (Feldman-Muhsam, 1960) were named to honor Dr Theiler for her many contributions to tick research. Theiler was the youngest daughter of Sir Arnold Theiler , founder and first director of the Veterinary Institute, Onderstepoort, and his wife, Emma Sophie Jegge; in 1971, she authored a biography of her father. She was a sister of virologist Max Theiler, who was awarded the 1951 Nobel