What is an infectious disease? What are the characteristics of infectious diseases?

What is an infectious disease? What are the characteristics of infectious diseases?

What is an infectious disease? What are the characteristics of infectious diseases?

Infectious Diseases are diseases caused by various pathogens that can spread between humans, animals and animals, or between humans and animals. Most of the pathogens are microorganisms, a small part is a parasite, and parasites are also called parasitic diseases. In some infectious diseases, the epidemic prevention department must promptly grasp the morbidity of the disease and take timely countermeasures. Therefore, it should report to the local epidemic prevention department in time according to the stipulated time, which is called legal infectious disease. There are currently 39 types of legal infectious diseases in China, including A, B and C.

An infectious disease is an infectious disease that can be transmitted from one person or another species to another person or species through various routes. Usually, the disease can be directly contacted with infected individuals, the body fluids and excretions of infected people, and objects contaminated by infected people. It can be transmitted by air, water, food, contact, soil, and vertical. Mother-to-child transmission) and so on.


Characteristics

Infectious diseases are characterized by pathogens, infectivity and epidemics, and are often immune after infection. Some infectious diseases are seasonal or local. The classification of infectious diseases has not been unified, and can be classified according to pathogens or by means of transmission. The prevention of infectious diseases should adopt comprehensive measures that take the lead in cutting off the main communication links. The spread and epidemic of infectious diseases must have three links: the source of infection (the person or animal that can expel the pathogen), the route of transmission (the way in which the pathogen infects others), and the susceptible population (the person who is not immune to the infectious disease). If one of the links can be completely cut off, the occurrence and prevalence of the infectious disease can be prevented. The weak links of various infectious diseases vary. It should be fully utilized in prevention. In addition to the main links, measures should be taken for other links, in order to better prevent various infectious diseases.