8.5 NON-INFECTIOUS DISEASES
Non- infectious diseases are not caused by pathogens and cannot spread from person to person. These include:
8.6 COVID-19
You all are familiar with Covid- 19. It was a global pandemic during 2020- 2022. COVID- 19 is caused by the coronavirus SARS- CoV- 2. It is an acute disease. It affects the body in many ways:
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Fig. 8.2: Types of diseases
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