A nasal spray given to strictly-Orthodox people in the Israeli city of Bnei Brak appears to be a strong defence against Covid-19.
As Rosh Hashanah approached last September, with growing concern about the further spread of the disease in the city, officials from the biopharmaceutical company Nasus Pharma approached a local rabbi and offered use of the spray Taffix.
Designed to coat the inside of the nose to prevent the virus penetrating, 83 people agreed to use the spray before attending synagogue.
Of these, just two contracted Covid.