70 years ago doctors could cure infections
the situation was very different 70 years ago
alxander fleming developed penicilli
all bacteria became resistant to penicillin after a few years
the first trial of penicillin was on rats
Unfortunately,some bacteria became resistant to peni after a few years becaues of the overuse of antibiotics
use the words form the box to complete the sentences about the text
mould
prescribe
resistant
trial
infections
cure
bacteria
70 y ago people were very worried about getting ...
fleming found that the... in the petri dish killed..
the... of penicillin on mice was successful
Florey is team knew that penicillin could... infeciions
after a few years some bacteria became... to penicillin
doctors now... penicillin less often than in the 1940s