Comment Comment by lalaland1125 Also of note is that most transmission so far appears to have been through male on male sex> Another puzzle is why almost all of the case clusters include men aged 20–50, many of whom are gay, bisexual and have sex with men (GBMSM).That means it's probably less contagious if it requires anal sex to transmit. parent lalaland1125 4 years ago
> Another puzzle is why almost all of the case clusters include men aged 20–50, many of whom are gay, bisexual and have sex with men (GBMSM).
That means it's probably less contagious if it requires anal sex to transmit.