Oseltamivir is still getting used. Appears to be powerful, a minimum of like a prophylactic. They also speculate the girl could have organic immunity from her connection with ducks in the past. Hemagglutinin inhibition (HI) assay: The HI assay exams for antibodies for the hemagglutinin of the specific influenza virus https://www.dailypioneer.com/2014/state-editions/exhibition-sale-in-mrignanynee-emporium.html