(Newser) – Who is more likely to have an STD: a Los Angeles porn star or a Nevada prostitute? According to a new study, the former, by far. A survey of 168 LA County adult film stars found 28% have gonorrhea, chlamydia, or both; the number of prostitutes infected is negligible, the Los Angeles Times reports. That's because Nevada state law requires them to use condoms, and they're tested every week for the diseases, notes the report, which comes ahead of an LA County ballot measure that would force actors to use condoms on set.

Since Nevada instituted the condom and STD testing rules, there have been no cases of HIV infection among prostitutes, adds the report, whereas the porn industry has seen several. What's more, "the report clearly shows that current testing practices miss two-thirds of active gonorrhea and chlamydia infections" among porn stars, says an expert. The porn industry counters that regular urine testing of performers makes for a safe environment, but the LAT notes that actors aren't checked for rectal or oral infections. (Read more pornography stories.)

