Oseltamivir is still getting used. Appears to be helpful, at least for a prophylactic. Additionally they speculate the lady could have purely natural immunity from her contact with ducks in the past. * Avian influenza H5N1, excreted in substantial amounts in the droppings of infected birds, is endemic. Sporadic human https://www.dailypioneer.com/uploads/2023/epaper/february/raipur-english-edition-2023-02-06.pdf