STDs Overview Presentation
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STDs Overview Presentation






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STDs Overview Presentation STDs Overview Presentation Presentation Transcript

  • Sexually Transmitted Diseases
    • What are STDs?
    • Symptoms of STDs
    • Common sexually transmitted pathogens
    • (STIs) Sexually transmitted infections are a major global cause of *acute illness,
    • * infertility,
    • *long-term disability and
    • *death, with severe medical and psychological consequences for millions of men, women and infants.
    • STIs are spread primarily through person-to-person sexual contact.
    • >30 different sexually transmissible bacteria, viruses and parasites.
    • Several STIs, particularly HIV and syphilis, can be transmitted through blood products and tissue transfer, and from mother to child during pregnancy and childbirth.
    • Symptoms of STDs may be:
    • absent,
    • mild and transient,
    • acute (as with gonorrhoea, chancroid, herpes simplex virus).
    • Many STIs can have severe long-term consequences.
    • In adults, chlamydia and gonorrhoea may lead to complications such as infertility, chronic illness and potentially fatal ectopic pregnancy.
    • Chlamydia, gonorrhoea and syphilis can produce serious and often life-threatening conditions in fetuses and newborn babies, such as congenital syphilis, pneumonia and low birth weight.
    • Infection with human papillomavirus is a proven precondition for the development of carcinoma of the cervix, which is the second leading cause of female cancer mortality worldwide.
    • Some of the most common sexually transmitted pathogens can be divided into bacteria, viruses and parasites.
    • Common bacteria:
    • * Neisseria gonorrhoeae (causes gonorrhoea or gonococcal infection)
    • * Chlamydia trachomatis (causes chlamydial infections)
    • * Treponema pallidum (causes syphilis)
    • * Haemophilus ducreyi (causes chancroid)
    • * Klebsiella granulomatis (previously known as Calymmatobacterium granulomatis, causes granuloma inguinale or donovanosis)
    • Common viruses:
    • HIV (causes AIDS)
    • Herpes simplex virus type 2 (causes genital herpes)
    • Human papillomaavirus (causes genital warts and certain subtypes lead to cervical cancer in women)
    • Hepatitis B virus (causes hepatitis and chronic cases may lead to cancer of the liver)
    • Cytomegalovirus (causes inflammation in a number of organs including the brain, eye and bowel)
    • Parasites:
    • Trichomonas vaginalis (causes vaginal trichomoniasis)
    • Candida albicans (causes vulvovaginitis in women and inflammation of the glans penis and foreskin in men)