Health Alert: Korea Issues Warnings for Norovirus, Flu, and Mosquito-Borne Illnesses During Lunar New Year
Amidst anticipated travel for the Lunar New Year, health officials in South Korea are urging vigilance against a trio of infectious disease threats: a surge in norovirus and influenza domestically, and the risk of mosquito-borne illnesses abroad. The Korea Disease Control and Prevention Agency (KDCA) is emphasizing preventative measures as increased movement and gatherings are expected during the holiday period.
Rising Infections in Korea
According to the KDCA, the risk of waterborne, foodborne, and respiratory infectious diseases is currently elevated within the country. Norovirus infections are particularly concerning, with 709 cases reported in the fifth week of this year (January 25th to 31st). This represents a significant increase since the end of last year, with children under the age of six accounting for 45.1% of reported cases. To mitigate the spread, officials recommend thorough handwashing with soap for at least 30 seconds and cooking food to a temperature exceeding 85 degrees Celsius for a minimum of one minute.
The flu epidemic also continues to gain momentum. Clinic-level surveillance data from the KDCA indicates 47.5 suspected flu cases per 1,000 outpatients in the fifth week of the year, a slight increase from 40.9 cases reported in the second week. Notably, type B influenza, typically prevalent from late winter to early spring, is circulating earlier than usual this year.
Vaccination and Prevention for Vulnerable Groups
Preventative measures, such as practicing proper coughing etiquette and ensuring adequate ventilation, are crucial in combating the flu. A senior official stated, “Even if you caught influenza A at the beginning of this winter’s epidemic, you can catch influenza B again.” The KDCA strongly advises vulnerable populations – including the elderly, pregnant women, and children – to receive vaccinations. Individuals experiencing respiratory symptoms are urged to limit social contact during the holiday.
International Travel Precautions
Before embarking on international travel, it is advisable to review infectious disease outbreak information and prevention guidelines for your destination. Maintaining strict personal hygiene practices while abroad is also essential. Starting February 10th, travelers entering Korea with respiratory symptoms like fever, cough, or sore throat can access free respiratory infectious disease testing at airport and port quarantine centers nationwide.
Mosquito-Borne Disease Threat in Southeast Asia
Travelers heading to Southeast Asia, a popular destination for Korean tourists, face a heightened risk of mosquito-borne infectious diseases. Climate change is contributing to the rapid global spread of these illnesses. Last year, 178 cases of mosquito-borne diseases were introduced into the country.
Dengue fever is of particular concern, with over 5 million cases reported in 106 countries last year, resulting in 3,000 fatalities. The disease is prevalent in Southeast Asian nations like Vietnam and Indonesia, as well as in parts of the Americas, including Brazil and Mexico. Re-infection is possible, and severe dengue fever carries a fatality rate of approximately 5%. The KDCA offers rapid dengue fever tests at quarantine stations for individuals experiencing symptoms upon entry into the country.
Beyond dengue fever, travelers should also be aware of risks associated with malaria, Zika virus infection, and chikungunya fever. Preventative measures include wearing long-sleeved clothing and long pants, and utilizing mosquito repellent. Additionally, caution should be exercised to avoid waterborne and foodborne illnesses like dysentery and cholera, which can be contracted through contaminated food and water.
Commissioner Lim Seung-kwan emphasized, “Personal hygiene rules must be strictly observed to prevent infectious diseases during the Lunar New Year holiday.” He further urged seniors over 65, pregnant women, and children to get vaccinated prior to the holiday to protect against respiratory infections, given the anticipated increase in gatherings.
