It is believed that the filter material of this invention could also be effective in this method against the virus that cause colds, influenza, SARS, RSV, bird flu and mutated serotypes of these. A appropriate materials for this further materials…
It is believed that the filter material of this invention could also be effective in this method against the virus that cause colds, influenza, SARS, RSV, bird flu and mutated serotypes of these. A appropriate materials for this further materials…