B6 Preventing and treating disease Flashcards
1
Q
how do vaccinations work?
A
inject harmless amount of pathogen into body
stimulate white blood cells to produce antibodies
immune system can now counter virus
2
Q
what is herd immunity?
A
large portion of the population is immune to a pathogen, the pathogen spread is reduced
3
Q
how do painkillers work?
A
treat the symptoms but dont kill the pathogen
4
Q
what do antibiotics do?
A
cure bacterial disease by killing the bacterial pathogen
5
Q
can antibodies kill viruses?
A
no, viruses reproduce inside human cells