1921
Volume 55, Issue 2
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645
USD

Abstract

Abstract

Following a striking increase in the severity of autumnal outbreaks of during the last decade in the Northwest Frontier Province (NWFP) of Pakistan, the role of climatologic variables was investigated. A multivariate analysis showed that during the transmission season of , the amount of rainfall in September and October, the temperature in November and December, and the humidity in December were all correlated (r = 0.82) with two measures of , the falciparum rate (percent of slides examined positive for ) since 1981 and the annual proportion (percent of all malaria infections diagnosed as ) since 1978. Climatologic records since 1876 show an increase in mean November and December temperatures by 2°C and 1.5°C, respectively, and in October rainfall. Mean humidity in December has also been increasing since 1950. These climatologic changes in the area appear to have made conditions for transmission of more favorable, and may account for the increase in incidence observed in the NWFP in recent years.

Loading

Article metrics loading...

/content/journals/10.4269/ajtmh.1996.55.131
1996-08-01
2017-11-18
Loading full text...

Full text loading...

http://instance.metastore.ingenta.com/content/journals/10.4269/ajtmh.1996.55.131
Loading

Most Cited This Month

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error