Question
What are called pathogens? Give information about it? (with example).
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Answer
→Many organisms like bacteria, viruses, fungi, parasites, worms are responsible for causing diseases in humans. Such disease causing organisms are called pathogens.
→All parasites are pathogenic because they harm the host by staying in or on it. Pathogens enter our body in many ways, multiply, disturb our essential functions.
→As a result, external and functional impairment occurs.
→Pathogen has to adapt its life according to the internal environment of the host.
→Shows ability to survive in pH (<7) and resist various digestive enzymes.
Examples:
→All parasites are pathogenic because they harm the host by staying in or on it. Pathogens enter our body in many ways, multiply, disturb our essential functions.
→As a result, external and functional impairment occurs.
→Pathogen has to adapt its life according to the internal environment of the host.
→Shows ability to survive in pH (<7) and resist various digestive enzymes.
Examples:
| Disease | Pathogens | |
| 1 | Typhoid | Salmonella typhi |
| 2 | Pneumonia | Streptococcus pneumoniae, Haemophilus influenzae |
| 3 | Common cold | Rhino viruse |
| 4 | Malaria | Plasmodium species |
| 5 | Ascariasis | Ascaris lumbricoid |
| 6 | Elephantiasis/ Filariasis | Wuchereria bancrofti |
| 7 | Ringworm | microsporum, trichophyton & Epidermophyton |
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