What's going on with Dr Delvin? First he gives advice about organic food which it seems he knows nothing about (The Argus, March 17) and now he gives his opinions about chlamydia (The Argus, March 24).

What are the facts?

Can he tell us what percentage difference there is in contracting sexually transmitted diseases between those going out on the pull in clubs and pubs compared with couples who go to each other's homes?

  • Liz Walker, Marine Parade, Brighton