viruses Flashcards
1
Q
What are communicable diseases?
A
communicable diseases are diseases which spread from person-person. They are infectious.
2
Q
What can bacteria do?
A
-Bacteria can reproduce very rapidly.
-They can release toxins which are harmful chemicals.
3
Q
What can viruses do?
A
Viruses:
-Can reproduce by themselves
-Can only reproduce in a host cell.
4
Q
How are pathogens spread?
A
Pathogens are spread by:
-Water droplets in the air.
-Direct contact between individuals.
