Parasite and host during incubation period, Biology

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Parasite and host during incubation period
  1. Incubation period is the second stage in the process of a disease.
  2. It is the time between the day of infection to the appearance of disease symptoms.
  3. The number of pathogens entering the host may not be sufficient to produce a disease.
  4. They divide and multiply very rapidly and increase in numbers.
  5. The parasite selects the tissue where it gets protection from the host defence system.
  6. The incubation period varies from a few days to a few years.
  7. The incubation period in malaria is 10-15 days, African sleeping sickness is 20-25 years.

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