What is the lifestyle factor here?

Hepatitis b and hiv/aids are two serious infections that can be transmitted by a. breastfeeding and contact with blood. b. sharing food and sharing drinks. c. transmission by air, water, and shared bodily fluids. d. skin contact, contact with urine, and sharing clothing.

There are blank calories in a gram of carbohydrate

The age of receding pandemics is one of three progessive ages of epidemiologic transition. select one: true false