The city of Busan has called on citizens to take strict mosquito bite prevention measures after a nationwide Japanese encephalitis caution order was issued by the Korea Disease Control and Prevention Agency (KDCA) on March 27.

The warning was triggered after the little red house mosquito, the known carrier of the Japanese encephalitis virus, was first detected this year in Jeju Province and Jeollanam-do.

These mosquitoes typically live in rice paddies and ponds, are most active at night, and tend to peak in activity between August and September.

Although Japanese encephalitis often results in mild symptoms like fever and headache, in rare cases it can lead to severe complications such as high fever, seizures, confusion, paralysis, and even death.

The fatality rate for serious cases ranges from 20% to 30%, and 30% to 50% of those who recover may suffer from long-term neurological damage.

Currently, there is no specific cure for Japanese encephalitis, making vaccination and mosquito bite prevention the most effective forms of protection.

Recommended Preventive Measures:

Avoid outdoor activities from sunset to sunrise (April–October), when mosquitoes are most active.

Wear long, loose, and light-colored clothing when going outside at night.

Apply mosquito repellent to exposed skin and clothing, including socks and shoes.

Avoid strong-scented perfumes or cosmetics that may attract mosquitoes.

Keep screens on doors and windows in good condition, and use mosquito nets indoors if necessary.

Eliminate standing water around the home to prevent mosquito breeding.

Vaccination is available free of charge for children aged 12 to 12 months, and designated medical institutions can be checked on the Vaccination Assistant website (nip.kdca.go.kr).

For adults with no prior vaccination who live in high-risk areas such as rice paddies or near pig farms, or who are traveling to countries where the virus is common, paid vaccinations are strongly recommended.

The city urges all residents to be vigilant and follow the recommended precautions to stay safe during the mosquito season.

Fleet Chinhae