Classification of AIDS

Class I

Primary infection
Fever, Athralgia, myalgia
Primary infection occurs 2-4 weeks after exposure.
Appearance of specific Anti-HIV antibodies in serum ( sero conversion) takes places later at 3-12 weeks ( median 8 weeks)

Class II

Asymptomatic infection

Class III

Persistent generalized lymphadenopathy.it is defined as enlarged glands at > 2 extra inguinal sites.

Class IV

AIDS Syndrome
Characterized by specific opportunistic infections tumours etc.
Infections ( Bacterial, Viral and fungi)
Candidiasis ( most common)
Pneumocystis  carinii pneumonia
Mycobacterium avium intracellular infection
Herpex simplex
Toxoplasmosis
Molluscum contagiosum
Tumors
Kaposi sarcoma
Non-Hogdgkins lymphoma
Oral hairy leukoplakia