Pertussis vaccine Japan. A dramatic increase in the incidence of pertussis followed. In the United States, low profit margins and an increase in vaccine-related lawsuits led many manufacturers to stop producing the DPT vaccine by the early 1980s. In 1982, the television documentary "DPT: Vaccine Roulette" by reporter Lea Thompson depicted the lives of children whose severe disabilities were incorrectly blamed on the DPT vaccine. The ensuing negative publicity led to many lawsuits against vaccine manufacturers. By 1985, vaccine manufacturers had difficulty obtaining liability insurance. The price of DPT vaccine skyrocketed, leading providers to curtail purchases, limiting availability. Only one manufacturer remained
Kyasanur Forest disease Kyasanur Forest disease Kyasanur Forest disease (KFD) is a tick-borne viral hemorrhagic fever endemic to South Asia. The disease is caused by a virus belonging to the family "Flaviviridae", which also includes yellow fever and dengue fever. The disease was first reported from Kyasanur Forest of Karnataka in India in March 1957. The disease first manifested as an epizootic outbreak among monkeys killing several of them in the year 1957. Hence the disease is also locally known as monkey disease or monkey fever. The similarity with Russian spring-summer encephalitis was noted and the possibility of migratory birds carrying the disease