What are blood-borne diseases?

There are many blood diseases, among which blood-borne diseases are relatively serious. There are many diseases in this regard, the more common ones are epidemic encephalitis B, dengue fever, filariasis, plague, etc. In addition, diseases such as typhoid fever are relatively common blood-borne diseases, which are quite harmful to humans and often lead to outbreaks of diseases. Therefore, understanding this aspect will help to better control and isolate the source of infection.

What are blood-borne diseases?

An infectious disease caused by pathogens that parasitize in human blood and lymph and transmitted by blood-sucking insects.

They mainly include epidemic encephalitis B, malaria, dengue fever, and filariasis transmitted by mosquitoes; plague and endemic typhus transmitted by fleas; epidemic hemorrhagic fever, scrub typhus transmitted by lice, and kala-azar transmitted by sand flies. Among them, malaria, Japanese encephalitis, filariasis and hemorrhagic fever are more common.

Pathogens include viruses, bacteria, rickettsia, spirochetes, protozoa, worms, etc. The source of infection is humans, animals, or both. The main mode of transmission is that blood-sucking insects directly inject pathogens into the human body during the blood-sucking process. Malaria can also be transmitted through blood transfusions. As a result of long-term evolution and adaptation, there is a relatively fixed relationship between various blood-borne diseases and blood-sucking insects. For example, Japanese encephalitis and malaria can only be transmitted by mosquitoes.

Because insects have different geographical distributions and living habits, the occurrence of most blood-borne diseases has a certain regional and seasonal nature. The pathogens of blood-borne diseases can widely invade various organs and systems of the human body. For example, the Japanese encephalitis virus invades the central nervous system, and the plague can damage multiple organs throughout the body. Eliminating vector insects is the dominant measure and direction of effort in preventing blood-borne diseases.

Secondly, the source of infection must be effectively controlled and isolated, and susceptible populations must be vaccinated (such as Japanese encephalitis vaccine) or given medication in a timely manner. Necessary protective measures should be taken during field operations to prevent insect bites. In addition, AIDS is also a blood-borne disease.

Mode of transmission:

The process of transmitting disease to another individual mainly through infection of blood and wounds is called blood transmission. It is common in medical use of injection equipment and blood transfusion technology errors. Therefore, many medical institutions require that the implementation of related medical procedures must be confirmed by multiple people to avoid harming patients. When donating blood and transfusing blood, further tests are conducted on the relevant physiological conditions of donors and recipients to reduce the risk of such infections. However, due to the use of drugs, the sharing of needles can cause difficult-to-prevent infections, especially for the prevention of AIDS.