1. | Pre-pubertal | 2. | Adolescence |
3. | Late adulthood | 4. | Geriatric |
1. | through sexual contact with an infected person |
2. | from mother to child during pregnancy, delivery, or breastfeeding |
3. | via blood and blood products |
4. | vector borne |
1. | Swine flu | 2. | Dengue |
3. | Covid-19 | 4. | Avian influenza |
1. | Cocaine | 2. | Morphine |
3. | Barbiturates | 4. | Benzodiazepines |