La situación de la fiebre amarilla en Bolivia

Abstract

All outbreaks of yellow fever in Bolivia during the last five years have occurred in areas where the disease was known to exist previously, namely, at the foothills of the Andes to the West and to the South of Santa Cruz, up to the parallel 20 of latitude South; the provinces of Velasco and Nuflo de Chávez in the Department of Santa Cruz and the Kaka River valleys in the Department of La Paz. However, the endemic area proper would include all of the national territory to the East of the Andes up to an altitude of about 1,000 meters above sea level and to the north of parallel 20 as far as the border of Brazil, as, outside of the places affected during the last five years, other outbreaks have occurred in this area, since 1932, when the Yellow Fever Service was created. The Aedes aegypti was eradicated in 1942, Bolivia being the first American country to achieve this success. Since 1936, when the last yellow fever outbreak due to A. aegypti occurred (in Terebinto), this vector has ceased to have epidemiological significance, and all recent outbreaks have been of the jungle type. In 1941-1945, out of 2,354 samples of liver examined at the 66 existing viscerotomy posts, 47 proved positive. There were 104,426 vaccinations against yellow fever made in the country from 1938 to 1945(AU)