Belgium reports 14 confirmed West Nile virus cases and two deaths

Yesterday 14:36

By: Azzat Manal

Belgium reports 14 confirmed West Nile virus cases and two deaths

Belgium has confirmed 14 cases of West Nile virus infection in the Flanders region, including two deaths, according to the Flemish health agency. The announcement, made on Thursday, October 15, 2026, has renewed attention to the risks posed by mosquito-borne diseases, particularly among people who are more vulnerable to severe illness.

The two people who died had underlying risk factors that increased their likelihood of developing serious complications, the agency said. Its spokesperson, Anneleen De Sadeleer, noted that local circulation of the virus had been detected in Flanders in recent months and that health authorities had anticipated the possibility of severe cases.

Although most West Nile virus infections cause no symptoms or result in mild illness, a small proportion can develop into serious disease. According to the Flemish agency, approximately 1% of infected people may experience a severe form of the illness. Older adults and people with weakened immune systems face a greater risk of complications.

West Nile virus is primarily transmitted to humans through the bites of infected mosquitoes. Birds serve as the main hosts in the transmission cycle, with mosquitoes acquiring the virus after feeding on infected birds and subsequently transmitting it to other animals or people. The virus does not usually spread directly from person to person through ordinary contact.

In most cases, infected individuals remain asymptomatic or develop relatively mild symptoms, such as fever, headache, body aches and fatigue. In rare instances, however, the infection can affect the nervous system, causing conditions such as meningitis or encephalitis. Severe neurological complications can require hospitalisation and may be life-threatening, especially for people at higher risk.

Flemish Welfare Minister Caroline Gennez said authorities were continuing targeted communication with healthcare professionals and nursing homes to raise awareness of preventive measures. These efforts aim to reduce mosquito bites and help protect residents and other vulnerable groups.

Health experts generally recommend using insect repellent, wearing clothing that covers the arms and legs, fitting window screens where possible and removing standing water from gardens and outdoor areas where mosquitoes can breed. Public awareness and local mosquito-control measures can help reduce exposure, particularly during periods when mosquito activity remains high.

The confirmed cases and deaths highlight the importance of monitoring local transmission and ensuring that healthcare providers can recognise potentially severe infections. Authorities continue to emphasise prevention and targeted guidance for vulnerable populations as part of efforts to limit the health impact of West Nile virus in the region.