1 of 10 Quach Thi Mai lives with her young son in Vietnam. Her husband died of Aids a year ago and she is HIV positive. She sent BBC News Online this photo essay about her life.
2 of 10 I caught HIV from my husband, who was a drug addict. I always put some scent on his altar to pray for him. Although I hate him, I still also feel pity for him.
3 of 10 I always feel tired for no reason. There is no one to take care of me when I'm sick. I just stay in bed on my own.
4 of 10 My son is my only motivation for living. He is three years old. I'm not courageous enough to take him to a medical centre for another HIV test. I'm scared of the ruthless truth which I won't be able to stand.
5 of 10 My son and I live by ourselves. This is a photo of us playing together.
6 of 10 This is our frugal meal.
7 of 10 Everyday, I go to pick morning glory - water spinach - from the pond. I tie it into bunches and take them to the market to sell.
8 of 10 When I am at work, my little son plays by himself or with children from around the neighbourhood.
9 of 10 I wish for a bright future for my son.
10 of 10 This is a photo of me together with friends. I have taken part in activities to fight HIV/Aids, trying to help people to protect themselves. I also take care of people who have HIV/Aids.