West Nile Virus was first isolated from a feverish adult woman in the West Nile District of Uganda in 1937 during research on yellow fever hence the name. A series of serosurveys in 1939 in central Africa found anti-WNV positive results ranging from 1.4% (Congo) to 46.4% (White Nile region, Sudan). It was subsequently identified in Egypt (1942) and India (1953), a 1950 serosurvey in Egypt found 90% of those over 40 years in age had WNV antibodies. The ecology was characterized in 1953 with studies in Egypt and Israel. The virus became recognized as a cause of severe human meningoencephalitis in elderly patients during an outbreak in Israel in 1957. The disease was first noted in horses in Egypt and France in the early 1960s and found to be widespread in southern Europe, southwest Asia and Australia. Surprisingly the first strain of what is thought to be West Nile can be traced all the way back to the 1600's.
2007-11-23 05:58:14
·
answer #1
·
answered by quatt47 7
·
0⤊
0⤋
Think about it.
If something runs North and South......then it must have an East and West side.
Viola.....the disease was first diagnosed on the West banks of the Nile River.
2007-11-23 06:17:43
·
answer #2
·
answered by we_are_legion99 5
·
0⤊
0⤋
FIrst cases were reported on the western banks of the nile river
2007-11-23 05:53:56
·
answer #3
·
answered by Anonymous
·
0⤊
0⤋
i trust you should use any style that does no longer comprise DEET. yet you are able to't have an irrational worry of West Nile Virus -- it commonly purely impacts the elderly, small little ones (fetuses do not count number!), or those with very weakened immune structures.
2016-10-24 23:12:30
·
answer #4
·
answered by Anonymous
·
0⤊
0⤋
because that is where it was first detected
2007-11-23 06:13:43
·
answer #5
·
answered by perla0776 4
·
0⤊
0⤋