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Table 2 Summary of recent similar published studies done in Sri Lanka

From: A study of the correlation between dengue and weather in Kandy City, Sri Lanka (2003 -2012) and lessons learned

Place

Year published

Study period

Dengue notified/seropositive

Weather variables studied

Correlation identified

Colombo, Ratnapura, and Anuradhapura districts [21]

2013

2005–2011

Notified dengue cases

Tmax, rainfall

Tmax. and rainfall did not affect dengue incidence (but there was a mild correlation between dengue and rainfall in two cities).

Gampaha (it was one of the six Asian urban areas studied) [24]

2012

2006–2009

Seropositive dengue

Rainfall

A positive correlation was observed between the number of dengue cases and rainfall.

Western province of Sri Lanka (Colombo, Kalutara, and Gampaha districts combined) [25]

2009

2000–2004

Notified dengue cases

Rainfall

Dengue incidence was relatively low during heavy rainfall and increased when rainfall started to decrease, showing a 3–4-week lag. Dengue was strongly correlated with rain in most of the studied towns.

(No significant variations of temperature and humidity in were found, so they were not considered.)

  1. Tmax = maximum temperature