Biology for IGCSE & O level - Variation And Selection (Section 2 - No. 40)
Why is it necessary for drug companies to find and develop new types of antibiotics?
All viruses have become resistant to antibiotics.
Antibiotics are now drugs of misuse.
Antibiotics have been in use for over 60 years.
Many bacteria are resistant to some antibiotics.
Explanation
The emergence of antibiotic-resistant bacteria necessitates the continuous development of new antibiotics.
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