INFLUENZA A VIRUS; INFLUENZA B VIRUS; HUMAN ADENOVIRUS E SEROTYPE 4 STRAIN CL-68578 ANTIGEN; HUMAN ADENOVIRUS B SEROTYPE 7 STRAIN 55142 ANTIGEN; HUMAN HERPESVIRUS 1; HUMAN HERPESVIRUS 2; HUMAN HERPESVIRUS 5; HUMAN HERPESVIRUS 4; HEPATITIS B VIRUS; NORWALK VIRUS