Related Experiment Video
Updated: Aug 26, 2026

A Simple Fecal Flotation Method for Diagnosing Zoonotic Nematodes Under Field and Laboratory Conditions
Published on: December 15, 2023
The influence of climate on the epidemiology of bartonellosis in Ancash, Peru
E Chinga-Alayo1, E Huarcaya, C Nasarre
1Department of Internal Medicine, John H. Stroger, Jr. Hospital of Cook County, 1900 W Polk, 15th Floor, Chicago, IL 60612-9985, USA. erick_cpe@yahoo.com
Abstract:
The aim of this study was to evaluate the association between bartonellosis and selected climatic factors during the time periods 1983-1988 and 1995-99, which included two events of the El Niño phenomenon (1986-88, 1997-98), and to identify a reliable climate parameter to be used as an alert indicator for bartonellosis outbreaks in Ancash. The study site was Ancash and its province Carhuaz, Peru. Time-series cross-correlation analysis was used to assess the association between bartonellosis and climate parameters. A higher, almost 4-fold, monthly bartonellosis incidence risk in Ancash department was observed during the El Niño events of 1986-88 and 1997-98. At a regional (Ancash department) and local level (Carhuaz, Ancash), the best correlation was observed between bartonellosis and sea-surface temperature (SST). The results indicate that SST would be the best climate parameter to be used as an alert indicator for bartonellosis outbreaks in Ancash.
Related Concept Videos
Malaria
Amebiasis
What is Climate?
Toxoplasmosis
Global Climate Change
American Trypanosomiasis

