When was the pathogen of the measles first discovered?

Answer 1

Reports of measles go as far back to at least 600 B!.C!. however, the first scientific description of the disease and its distinction from smallpox is attributed to the Persian physician Ibn Razi (Rhazes) 860-932 who published a book entitled "The Book of Smallpox and Measles" (in Arabic: Kitab fi al-jadari wa-al-hasbah)!. In roughly the last 150 years, measles has been estimated to have killed about 200 million people worldwide!.[1] In 1954, the virus causing the disease was isolated from an 11-year old boy from the US, David Edmonston, and adapted and propagated on chick embryo tissue culture!.[2] To date, 21 strains of the measles virus have been identified!.[3] Licensed vaccines to prevent the disease became available in 1963!.Www@Answer-Health@Com

Answer 2

The measles virus evolved from the formerly widespread rinderpest virus, which infects cattle. Sequence analysis has suggested that the two viruses most probably diverged in the 11th and 12th centuries, though the periods as early as the 5th century fall within the 95% confidence interval of these calculations. Other analysis has suggested that the divergence may be even older because of the technique's tendency to underestimate ages when strong purifying selection is in action. There is some linguistic evidence for an earlier origin within the seventh century.The current epidemic strain evolved at the beginning of the 20th century-most probably between 1908 and 1943.

Answer 3

in 1930's

Answer 4

India