NanoSTING, a nasal spray, can prevent multiple respiratory viruses by activating the immune system and preventing infection from viruses. It can also protect against SARS-CoV-2 reinfection.

-- NanoSTING, a nasal spray, can prevent multiple respiratory viruses by activating the immune system and preventing infection from viruses. It can also protect against SARS-CoV-2 reinfection.

The team also trialled the spray in animals. A single dose of the nasal spray effectively blocked infection from an influenza virus at 25 times the lethal dose in mice. Co-senior author Yohannes ...

Viruses such as influenza virus, SARS-CoV-2 (the virus that causes COVID-19) and respiratory syncytial virus (RSV) multiply rapidly in the nose and spread from person to person within a few days ...

The U.S. Centers for Disease Control and Prevention (CDC) notes that the disease "is usually not serious," but it can still be concerning under some circumstances.

July 21, 2025 How to prevent mosquito bites — and West Nile virus — this summer The disease causes serious illnesses in about 1 in 150 infected people, and can prove fatal.

Approximately 30 percent of those infected with the virus die, and those who survive, are often left with neurologic problems. There are no vaccines or medicines to treat or prevent the disease.

Lucy Yang has more. INWOOD, Manhattan (WABC) -- Beginning Monday, the city will spray pesticides to prevent the spread of mosquitoes and any diseases they may carry.