Figure 1

Geographical map of Pakistan showing districts with IgM confirmed CCHF cases found during the years 2003 to 2008 reported to National Institute of Health, Islamabad, Pakistan. Districts with proportion of case burden have been indicated through black (high disease burden districts) and grey color (low disease burden non-endemic districts with sporadic cases). Majority of IgM confirmed cases (n = 57) found during 6 years (2003–2008) belong to Baluchistan province, followed by Khyber Pakhtunkhwa (n = 20); Punjab (n = 6); Sindh (n = 02). The least number of cases from Sindh province indicates low prevalence of CCHF infection in this province as well as the fact that Karachi, the capital of Sindh province, also contains the diagnostic facilities so the suspected cases are not referred to National Institute of Health, Islamabad.