The Ministry of Health has reported a surge in West Nile fever cases in Israel, with 42 diagnosed cases so far. Out of these, 36 patients have been hospitalized, and five are currently on ventilators. Tragically, one patient has died in Sheba, and another suspected case resulted in death in Bilinson. All affected individuals are from the central region of the country.
West Nile fever, which is transmitted by mosquitoes, has been a known issue in Israel, typically occurring between June and November. However, this year, cases have emerged earlier, likely due to climate changes and increased humidity in the region. The virus does not spread from person to person, nor does it revert from human to mosquito.
Approximately 80% of those infected with West Nile fever remain asymptomatic. Around 20% exhibit symptoms such as fever, malaise, headaches, or body aches, with less than 1% developing severe neurological complications. The Ministry of Health has emphasized the importance of using mosquito repellents and other preventive measures to reduce exposure.
In response to the rising number of cases, Sheba Hospital is considering experimental compassionate treatment for critically ill patients. The proposed treatment involves the administration of interferon injections, which have shown potential in animal studies to aid recovery from West Nile fever. Currently, there is no specific drug treatment or vaccine for the disease, so prevention remains crucial.
The Ministry of Health is conducting epidemiological investigations for each case and collaborating with the Ministry of Environmental Protection to implement local mosquito control measures. Public advisories are being issued to inform residents about areas where infected mosquitoes have been detected.
- Sheba Hospital in Tel Hashomer is at the forefront of considering new treatment protocols for West Nile fever, focusing on the use of interferon injections. This substance is naturally secreted by the body during infections and has been used in various treatments, including for multiple sclerosis.
- The Ministry of Health continues to refine its guidelines for medical teams, stressing the importance of accurate diagnosis and vigilant monitoring of the disease. They recommend using mosquito repellents, ensuring living spaces are equipped with mosquito-repellent accessories, and maintaining air circulation with fans.
- The early onset of West Nile fever this year is attributed to climate changes affecting Israel and the world. The humid conditions in the central part of the country have facilitated the breeding and development of mosquitoes. The Ministry of Health highlights that adults and immunocompromised individuals are at a higher risk of severe illness.
- In addition to preventive measures, the Ministry of Health and the Ministry of Environmental Protection are working together to conduct epidemiological investigations and implement mosquito control activities. They are also keeping the public informed about areas with detected mosquito activity to enhance community awareness and safety.
