What STDs stand for? Explain with examples.

Explanation

STD stands for sexually transmitted diseases, which are transmitted through sexual intercourse with infected persons. For example AIDS, syphilis, trichomoniasis:
(i) Syphilis is caused by bacteria named Treponema pallidum. Initially, it leads to ulcers on the genitalia followed by skin lesions, rashes and swollen joints. It is cured by taking penicillin or tetracycline as antibiotics.
(ii) AIDS is caused by human immunodeficiency virus. It leads to decreased immunity of the patient along with many other symproms like lethargy, weight loss, nausea, fiver. Although, AIDS is incurable yet a drug zidovudine (AZT) is used to treat this.
(iii) Trichomoniasis is a STD caused by Protozoa Trichomonas vaginalis. It infects both male and female causing foul smelling. yellow discharge and burning sensation in females and pain and burning sensation in males. It is usually treated by metronidazole in both the cases.