STD Window Periods: When to Test After Possible Exposure
There is no single window period for every sexually transmitted infection. Gonorrhoea and chlamydia nucleic-acid tests may become useful within days, while HIV, syphilis and hepatitis blood tests can require weeks and sometimes repeat testing. The exact timing depends on the infection, test technology, specimen site, symptoms and preventive medicine used. If a possible HIV exposure occurred within the past 72 hours, seek PEP assessment immediately and do not wait for a test window.







