Thawani, GopiDas, AmalaNeogi, D KMitra, KalyaniDutta, P K2009-05-282009-05-282002-09-28Thawani G, Das A, Neogi DK, Mitra K, Dutta PK. Serological study for sexually transmitted diseases in patients attending STD clinics in Calcutta. Indian Journal of Dermatology, Venereology and Leprology. 2002 Sep-Oct; 68(5): 275-8http://imsear.searo.who.int/handle/123456789/51982Total 457 patients attending different STD clinics of Calcutta were studied for serological tests for STD. TPHA positivity was maximum (18.60%), followed by chlamydia infection (15.97%), VDRL reactivity (8.98%), HIV infection (6.35%), and HBs Ag (3.72%). Total 37.20% samples were positive for one or more infection. Out of these, one, two, three and four tests positivity was seen in 65.29%, 25.88%, 8.24% and 0.59% respectively. The age group which had maximum infection (20.13%) was 15-30 years.engJournal Article