The Korea Centers for Disease Control and Prevention(KCDC) has issued a nationwide warning against Japanese encephalitis after a substantial number of vector species were found in the nation’s southwestern region. 

The warning came Friday after culex pipiens mosquitoes were spotted in South Jeolla Province. This species of mosquito is considered to be a Japanese encephalitis vector.

Health authorities issue a Japanese encephalitis warning when the daily average number of the virus-carrying mosquitoes in samples collected for two days a week remains above 500, and at least half of the total number of mosquitoes caught belong to a specific variety known to carry the virus. 

Among the sample mosquitoes collected in the province on Tuesday, 962 or nearly 65 percent were carrying Japanese encephalitis. 

The KCDC is advising children aged 12 months to 12 years old to get vaccinated along with some adults with weak immune systems.

[Photo : YONHAP News]