Vaccination, antibiotics and painkillers

Cards (9)

what do vaccinations do
make an individual immune to a certain disease
what is herd immunity
vaccinating a large proportion of people and therfore reducing the spread of the pathogen
how do vaccines make an individual immune to a disease
vaccine is made up of a dead or inactivated form of the pathogen
vaccine stimulates white blood ells to produce antibodies complementary to the antigens on the pathogen
advantages of vaccinations
eradicated many diseases so far
epidemics can be prevented through herd immunity
disadvantages of vaccination
not always effective
bad reactions to vaccines
what are antibiotics
medicines that kill bacterial pathogens inside the body without damaging body cells
how can antibiotics be taken
pill, syrup or directly into the bloodstream
what is antibiotic resistance
bacteria no longer respond to antibiotics
how do bacteria become resistant to antibiotics
mutations can occur during reproduction of certain bacteria that make it immune
when these bacteria are exposed to antibiotics, the non-resistant ones die
resistant ones survive and reproduce, increasing the number of resistant bacteria
antibiotics now no longer work