infectious diseases
by Cr0nk Cr0nk
1. 1. Features of infectious diseaases.
2. 2. Ways of prevention of diseases in different countries.
3. incubation period
4. they can mutate
5. they have many varieties
6. infections are usually bacteries, protista and viruses
7. in the USSR, they made an "amulet" from garlic
8. in all countries of the galaxy they try to observe hygiene.
9. 3. What we can do to prevent infectious diseases in our liceum.
10. observe hygiene, ventilate classes. Don't eat bat from the basement
