So called sexually transmitted diseases can be transmitted via non-sexual routes, such as fluid exchange/contact, in transfusions, injections etc. Any time there are fluids then it's likely possible that you could pick up an infection.
You ask about infection rates. There are many STIs, so probably a web search would be your friend for all of these diseases, noting all of the areas that you have sex in, as some countries have differing rates.
Crabs seem to be diminishing, and there was some talk of them becoming an endangered species, in the red group - this would mean that people would have to shag, to pass them around, and increase their chances of survival (I slightly exaggerate).
Where stomach acid is involved, such as something being swallowed, it is a very good protective measure for us.
If one or more partners have open wounds, then this does increase potential infection rates.
Overall, there is safer sex, as most sex and barriers carry some risk. The only safe sex is abstinence.
For hiv it seems that oral sex is much lower risk than vaginal or anal penetrative sex. Again, the op searches he will find some advice.
The key priority is to test regularly. Most people will have been infected with HPV Human papillomaviruses as they mature, but won't be infectious. There are 30 to 40 of these types of viruses that can be infected sexually, so a large no of varied diseases. |
