The National Institute of Health (NIH) has issued an advisory on the prevention and control of Chikungunya Viral Infection, following outbreaks in Karachi and other parts of the country. Chikungunya, now endemic in many regions, is caused by the Chikungunya Virus (CHKV) and transmitted by Aedes mosquitoes, which also spread dengue fever.
According to the NIH, proximity to mosquito breeding sites is a key risk factor. The viruses can circulate in the same areas, leading to occasional co-infections of Chikungunya and dengue in patients.
Preventive measures amid mosquito season
In light of the current mosquito season and the historical prevalence of the disease, the advisory underscores the need for vigilance, early detection, and proactive measures to prevent transmission. Health care authorities have been urged to strengthen preparedness for the control of Acute Febrile Viral Illness, which includes suspected Chikungunya cases.
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Chikungunya virus symptoms typically appear four to eight days after exposure, with viraemia lasting five to seven days. The virus is transmitted by Aedes aegypti and Aedes albopictus mosquitoes, which are active during the day. While the disease shares symptoms with dengue, CHKV infections are rarely fatal and do not cause significant hemorrhagic complications.
