No-one catches a disease because of sexual orientation or sexual identity. However, people will catch diseases from someone who is infected. This may be a straight person, a gay person, a bisexual man, a bisexual woman, a tranny or a hermaphrodite. My basic point is that disease doesn't discriminate according to one's sexual orientation or sexual identity. My advice to the straight porn industry is to get over it and stop blaming trannies and the gay community for your own inadequacies.