Infectious Diseases, Immunity & Allergies

Infectious diseases, immunity and allergies are closely related concepts that determine human health and well-being. Infectious diseases arise as a result of infection of the body by pathogenic microorganisms such as bacteria, viruses, fungi and others.

The body has a powerful defense system called immunity. It is able to recognize and destroy pathogenic microorganisms that enter the body. However, sometimes the immune system may fail, leading to allergic reactions.

An allergy is a reaction of the immune system to certain substances that do not normally cause any reaction in most people. These substances are called allergens and can be of various origins, for example, pollen, food, drugs and others.

Various methods are used to prevent and treat infectious diseases, including vaccination, the use of antibiotics, antiviral drugs, and others. However, in recent years, the problem of resistance of pathogenic microorganisms to antibacterial and antiviral drugs has emerged, which complicates their treatment.

Therefore, it is important to practice good hygiene, including regular hand washing, avoiding contact with sick people, and taking measures to strengthen the immune system, including a healthy lifestyle, proper nutrition and exercise.

Overall, understanding the nature of infectious diseases, immunity and allergies is key to maintaining human health and well-being. Modern methods of prevention and treatment make it possible to combat most infectious diseases, however, constant work is required to improve these methods and increase the level of hygiene and a healthy lifestyle.

Links:

1. "Infectious diseases". Encyclopedia of Health. https://www.healthline.com/health/infectious-diseases

2. "Immunity: what is it and how to strengthen it." Medical portal. https://medportal.ru/enc/immunology/immunity/

3. "Allergy". Roszdravnadzor. https://roszdravnadzor.gov.ru/folder/1659

4. "Prevention and treatment of infectious diseases." Ministry of Health of Russia. https://www.rosminzdrav.ru/ministry/61/22/stranitsa-1025