Information may be derivatively classified in two ways: (1) through the use of a source document, usually correspondence or a publication generated by an OCA; or (2) through the use of a classification guide.. Derivative classification actions utilize information from the original category of classification. Every derivative classification action is based on information where classification has already been determined by an OCA.
Syphilis, hepatitis and herpes are tested from a blood sample, unless you have an open sore â then the syphilis and herpes tests are gathered from rubbing a cu-tip on the sore. You will receive the results of your STD test back within 7 to 10 days.
Symptoms can develop within a few days or weeks, but sometimes they don't appear until months or even years later. Often there are few or no symptoms and you may not know you have an STI. If there's any chance you have an STI, find a local STI testing service or go to your GP for a free and confidential check-up.