Analyze these statements about the role of microorganisms in medicine:
S1: Microorganisms produce antibiotics that are used to fight bacterial infections.
S2: Vaccines are ineffective against diseases caused by microorganisms.
S3: Some fungi are utilized to manufacture drugs that can lower blood cholesterol.
S4: Microorganisms like viruses are always harmful and have no role in current medical treatments.
1
S1 and S3 are true; S2 and S4 are false.
2
S1, S2, and S3 are true; S4 is false
3
S1, S3, and S4 are true; S2 is false.
4
All statements are true.