Which facts relate to the disease TB or its pathogen?
1. Viruses change their antigens to a limited extent.
2. TB is caused by only one species of pathogen.
3. HIV/AIDS makes the bacterial infection worse.
4. The pathogen may be transmitted by ingestion.
5. The pathogen may be transmitted from animals.
6. Multi-drug resistance occurs.
1 )
1, 4, 5 and 6
2 )
1, 2 and 6
3 )
2, 3 and 5
3, 4, 5 and 6
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