Contagious Disease

Contagious disease: what is it and how to prevent it

Previously, the term “contagious disease” was used for a group of diseases transmitted only through direct physical contact. However, currently this term refers to any infectious disease.

Contagious diseases are among the most common diseases in the world. They are transmitted from person to person through air, food, water, and through contact with contaminated surfaces.

Among the contagious diseases, the most famous are influenza, measles, rubella, chicken pox, hepatitis, tuberculosis and AIDS. They can cause symptoms ranging from a mild runny nose and cough to serious complications such as pneumonia, hepatitis or even death.

Preventing contagious diseases is key to controlling their spread. To do this, it is important to observe basic hygiene measures, such as regular hand washing, using masks and protective equipment, maintaining distance and isolating in case of illness.

It is also important to be vaccinated against the most common contagious diseases. Vaccines help protect the body from possible infections and reduce the risk of complications.

In general, contagious diseases are a major public health problem. However, following basic preventative measures and vaccination can help reduce their spread and prevent possible complications.



A contagious disease is a group of human and animal diseases of heterogeneous origin, characterized by the ability to spread only directly from sick (individuals) to healthy ones or from the latter to the former. The concept was introduced into science by the famous scientist of Swiss origin Jules Borrell in 1892. Currently, this concept also means any infectious (contagious) disease of a person or animal. This disease is infectious, the most virulent. It is heavy, has a large scope and affects the main systems of the body.

The disease arose more than a million years ago as a result of infectious viral processes that occurred among primitive cave people. It is believed that it was because of the contagious cholera epidemic that primitive people began to live in cities, where it spread much faster. In ancient times, changes began to occur to people: the natural craving for their own health was lost, they stopped undergoing regular medical examinations. The impetus for this process was fear for one’s own life.