Each infectious disease is caused by its specific pathogen, which can be a microbe or a parasite. Including viruses, bacteria, fungi or parasites.
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| What are the characteristics of infectious diseases? |
Infectiousness is the main difference between infectious diseases and other types of diseases. Infectious diseases mean that pathogens can be transmitted to others through various channels. The infectious period of infectious disease patients is called the infectious period. Pathogens are excreted from the host, and reach a certain infectious body through certain means, showing a certain contagiousness, and the intensity of infection is related to the type, quantity, virulence, immune status of the susceptible population.
Epidemiological characteristics
1. Epidemiology is divided into strong pathogens and breadths of infectious disease epidemics. Dissemination: refers to the occurrence of infectious diseases in the crowd; epidemic: refers to a region or a unit, the incidence of a certain infectious disease in a certain period of time, exceeding the incidence level of the same period of the previous year; pandemic: refers to An infectious disease spreads and spreads rapidly in a short period of time, exceeding the general epidemic intensity. Outbreaks: refers to a local area or unit that suddenly has many patients with the same disease in a short period of time.
2. Endemic refers to certain infectious diseases or parasitic diseases, in which the host is affected by geographical conditions and changes in temperature conditions, and is often limited to a certain geographical range. Such as insect-borne diseases, natural epidemic diseases.

