| Statement | True | False |
|---|---|---|
| Penicillin does not kill all bacteria | ||
| Penicillin does not kill viruses | ||
| Penicillin is not available in large enough quantities to use for all infections | ||
| Some bacteria are resistant to penicillin | ||
| Other antibiotics are cheaper than penicillin |
1.
Why aren’t people vaccinated against smallpox today?
2.
What is the germ theory of disease?
3.
The first person to carry out a successful vaccination against smallpox was
4.
The germ theory of disease was proved by