Скачать или смотреть Human health & disease | Lecture-1 | Class-12 | Ashish sir

The state of complete physical, mental and social well beings is called health. Health simply does not simply means disease-free condition or physical fitness. Health is affected by-
a. Genetic disorders – the defect which child inherits from it parents.
b. Infection from microbes or other organisms.
c. Lifestyle- includes food and water we take, exercise and rest.

Disease – Diseases can be broadly grouped into infectious and non-infectious.
a) Infectious disease -Diseases which are easily transmitted from one person to another, are called infectious diseases e.g AIDS, common cold, malaria, tuberculosis etc
b) Non-infectious disease – Diseases which cannot transmitted from one person to another, are called non- infectious diseases e.g cancer, hypertension, diabetes etc.

Common Diseases in Humans:
The disease-causing microorganisms like bacteria, virus, fungus, protozoa, helminthes are called pathogen.
The pathogen can enter the body by various means and multiply and interfere with normal vital activities resulting in morphological and functional damage.

In this class, ashish sir introduced the students about some of the bacterial disease, their causes, mode of infection and their prevention and control.

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