Forty-six people have died of West Nile virus in Israel during this summer’s outbreak, the Israeli Health Ministry announced on Sunday.
Overall, 710 people have been diagnosed with the virus in the past two months.
West Nile virus has affected Israel for years, usually appearing in June through November and not usually infecting large numbers of people.
Eighty percent of those infected do not develop any symptoms, but the rest, especially elderly and immune-compromised people, display flu-like symptoms including fever, general malaise, headaches and general body aches.
Neurological complications will appear in less than 1% of those infected.
People in central Israel and greater Tel Aviv are especially at risk of contracting the disease as the high humidity creates a good breeding ground for the mosquitoes that spread it, according to the ministry.
The virus is primarily transmitted to humans via mosquitoes—particularly, species that feed on birds—and does not spread from person to person.
Israeli authorities have urged health officials to increase mosquito monitoring and extermination efforts while calling on the public to take preventative measures.