Democratic Sentinel, Volume 9, Number 23, Rensselaer, Jasper County, 3 July 1885 — Malaria Altitudes. [ARTICLE]

Malaria Altitudes.

While malaria belongs chiefly to lowlying districts, it may, under favorable conditions, exist at great elevations. On the Tuscan Apennines it is found 1,100 feet above the sea-level; on the Pyrenees and Mexican Cordilleras, 5,000 feet; on the Himalayas, 6,400 feet; on the island of Ceylon, 6,500 feet; and on the Andes, 11,000 feet. Under ordinary circumstances, however, a certain moderate altitude affords immunity from malaria. The elevation of entire security is not positively known, but it has been approximated as follows: In Italy, 400 to 500 feet; in California, 1,000 feet; in the Appalachian Mountains of the United States, 3,000 feet; in the West Indies, 1,400 to 1,800 feet; in India, 2,000 feet. In any of these regions malaria may drift up ravines to an indefinite height.