Across
- 2. People used to have parties to spread this virus to their children so that they would have immunity.
- 5. Primarily spread via infected mosquitoes.
Down
- 1. The deadliest virus using the case fatality rate metric. Fatal to humans in 99% of cases.
- 3. A recent virus that caused a worldwide quarantine.
- 4. You should get a shot to prevent new outbreaks every year.