Original sentence: As apes were butchered for meat, the person doing the butchering could have come in contact with the infected blood.Hunting of apes for bushmeat may have been one of the ways humans came into contact with HIV
Edited sentence: As apes are butchered for meat, the person doing the butchering comes in contact with the infected blood.Hunting of apes for bushmeat is believed to be one of the ways humans came into contact with HIV.There still exists no definitive proof of the link between HIV and wild meat harvesting and this still remains a theory