Diseases and First Aid

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Health is a state of complete physical, mental, and social well-being, not just the absence of disease or weakness. A healthy person can work, think clearly, interact well with others, and handle dail…

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Disease is a departure from normal health through structural or functional disorders of the body. It means the body is not working properly, and this may cause symptoms such as fever, pain, or weaknes…

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Communicable diseases are caused by pathogens and spread from infected people to healthy people. They can spread through air, water, food, contact, cuts, sexual contact, or insects such as mosquitoes …

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Non-communicable diseases are not caused by germs and cannot spread from one person to another. Diabetes and heart attack are examples. These diseases may happen because some body organs do not functi…

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Pathogens are disease-causing germs. They include microorganisms such as viruses, bacteria, fungi, worms, and protozoa. They are responsible for communicable diseases.

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Vectors are organisms such as house flies and mosquitoes that carry germs from a source of infection to a healthy person, but they do not themselves get infected. A mosquito can carry germs from an in…

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They spread by direct contact with an infected person. Measles, chicken pox, and fungal infections can spread this way. Touching, physical contact, or close exposure can pass the germs.

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They spread through shared items, contaminated food or water, vectors, and droplet infection. For example, sharing a towel may spread disease, flies can contaminate food, and droplets from coughing or…