Your baby has grown to weigh 6 to 10 pounds (on average). To accomplish all of these productive changes, your body needs approximately 300 extra calories per day during your 2nd and 3rd trimester of pregnancy. Every woman should discuss her individual nutritional needs with her health care provider.
Practice Essentials. Human immunodeficiency virus (HIV) is a blood-borne virus typically transmitted via sexual intercourse, shared intravenous drug paraphernalia, and mother-to-child transmission (MTCT), which can occur during the birth process or during breastfeeding.
Introduction. Changing HIV-1 virulence over the course of the AIDS epidemic carries implications for the future treatment and prevention of HIV/AIDS. Virulence is defined as the severity of a disease; for HIV, virulence is defined as the rate of progression to AIDS in untreated infections.