Which is not correct about antibiotics?

Options

A. Fleming discovered the first commercial antibiotic
B. Waksman coined the term antibiotic in 1942
C. Allergy may develop against an antibiotic
D. An antibiotic is effective against one specific pathogen.

Answer

To determine which statement about antibiotics is incorrect, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understand what antibiotics are**: Antibiotics are substances that can kill or inhibit the growth of bacteria, and they are primarily used to treat bacterial infections.

2. **Evaluate Option 1**: "Fleming discovered the first commercial antibiotic."
- Alexander Fleming discovered penicillin, which is considered the first antibiotic, but it was not commercialized until later. Thus, this statement is true.

3. **Evaluate Option 2**: "Waxman coined the term antibiotic in 1942."
- Selman Waksman is credited with coining the term "antibiotic" in 1942. This statement is true.

4. **Evaluate Option 3**: "Allergy may develop against an antibiotic."
- It is well-documented that some individuals can develop allergic reactions to antibiotics, such as rashes or difficulty in breathing. This statement is true.

5. **Evaluate Option 4**: "An antibiotic is effective against one specific pathogen."
- This statement is incorrect. Many antibiotics are broad-spectrum and can target multiple types of bacteria, not just one specific pathogen.

6. **Conclusion**: Based on the evaluations, Option 4 is the incorrect statement about antibiotics.

### Final Answer:
The statement that is not correct about antibiotics is: "An antibiotic is effective against one specific pathogen."

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