AIDS (acquired immunodeficiency syndrome)

AIDS is caused by HIV (human immunodeficiency virus

HIV progressively destroys the body's ability to fight infections and certain cancers

By killing or damaging cells of the body's immune system.

 

TRANSMISSION

The virus can enter the body through the lining of the vagina, vulva, penis, rectum, or mouth during sex

HIV is spread most commonly by having unprotected sex with an infected partner.

Risky behavior 

HIV can infect anyone who practices risky behaviors such as

Sharing drug needles or syringes

 Having sexual contact, including oral, with an infected person without using a condom

Having sexual contact with someone whose HIV status is unknow

　

Infected blood

HIV was transmitted through transfusions of contaminated blood or blood components

Contaminated needles

by the sharing of needles or syringes

accidental sticks with contaminated needles or other medical instruments.

Mother to child

Women can transmit HIV to their babies during pregnancy or birth

HIV also can be spread to babies through the breast milk of mothers infected with the virus.

Saliva

Laboratory studies reveal that saliva has natural properties that limit the power of HIV to infect, and the amount of virus in saliva appears to be very low

no evidence that the virus is spread to others through saliva by kissing

The lining of the mouth, however, can be infected by HIV, and instances of HIV transmission through oral intercourse have been reported

Scientists have found no evidence that HIV is spread through sweat, tears, urine, or feces.

Casual contact

HIV is not spread through casual contact such as the sharing of food utensils, towels and bedding, swimming pools, telephones, or toilet seats.