Oseltamivir remains being used. Would seem efficient, at least to be a prophylactic. They also speculate the girl could have all-natural immunity from her connection with ducks in the past. This analyze shows a pattern of weakening binding affinity of current antibodies in opposition to H5 isolates after some time, https://www.dailypioneer.com/2020/india/air-india-to-operate-36-flights-between-us-and-india-from-july-11-to-july-19.html