Kozhikode: As the rainy season begins, the latest reports indicate that four districts in the State are under the grip of viral fever.
Dengue fever has reached explosive proportions in four districts - Thiruvananthapuram, Pathanamthitta, Kottayam and Kasargod. Thiruvananthapuram district has registered a total of 1,053 confirmed cases of dengue fever so far.
Cases of the diphtheria were also confirmed in Malappuram district this year. Two cases of cholera were reported in Alappuzha district.