Across
- 2. is a virus that attacks the body's immune system its treatable
- 4. Sexually transmitted diseases, or sexually transmitted infections
Down
- 1. an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host
- 3. a disease in which there is a severe loss of the body's cellular immunity, greatly lowering the resistance to infection and malignancy