If it is an influenza virus then it is a Coronavirus. We already know how to prevent infection by a Coronavirus— therefore continue the regimen of supplements and lifestyle boosting of immune system to prevent infection.
This would be yet another coronavirus covered on the outside of the virion by SPIKE S-Proteins... which seek out ACE-2 receptors on the interior of the lung. Block the ACE receptors and the Spike protein cannot key in to the cell, and thus NOT inject the genetic contents of the virion into the cell. Prevention. Known.
It is more likely a virus like West Nile Virus which is a virus carried in birds that are then bitten by mosquitoes that then bite and infect humans. Not a Corona or influenza virus.