Anyone infected with the G virus will produce antibodies to fight the virus after three months  The antibodies will then increase for six months  There is now a test that reliably indicates how many antibodies are present in a person' s body
If positive, this test can be used during the first nine months of infection to estimate within a month how long that person has been infected
Anyone infected with the G virus will for a short time fail to exhibit infection if tested by the antibody test.