B2 Revision
What are antibiotics?
Read the information and then go to the next page to do the questions.
|
We can kill bacteria and
fungi, but not viruses, using chemicals called antibiotics.
Over a period of time bacteria
and fungi may become resistant to antibiotics.
Random changes (mutations) in
the genes of these microorganisms sometimes lead to varieties, which are less
affected by the antibiotic. To reduce antibiotic resistance we should only use antibiotics when necessary and always complete the course. |