Diseases which are spread by direct contact are called contagious diseases. They can also be spread through their secretions or objects touched by the infected. Some examples include athlete's foot, impetigo and warts. Contagious diseases are part of a broader group of diseases called infectious diseases. Infectious diseases can be transmitted in other ways, such as through liquids or the air. All contagious diseases are infectious, but not all infectious diseases are contagious.
Infectious disease, also known as a communicable disease or transmittable disease, is contagious. This means that you can catch it by some sort of contact, such as touching. An example of an infection disease is the flu, you can be infected with the flu if you have contact with an individual who has the flu.Non infectious disease, also known as a noncommunicable disease is not contagious. This means that you will not catch by any sort of contact. These diseases are usually caused by either genetics or environmental causes. An example of a noninfectious disease is cancer.
It is indeed caused by a micro-organism transferable from an infected person to a susceptible contact. However it is the least infectious of all infectious diseases. Immunity of the human beings against the invading pathogenic organism is very high. In this respect leprosy differs from most infectious diseases.Dr R Ganapati,Bombay leprosy Projecte-mail : email@example.com
An infectious disease is caused by a microorganism entering and attacking your body. People can pass these microorganisms from one person to another. This is called infectious.An infectious disease is transmitted from some source. Defining the means of transmission plays an important part in understanding the biology of an infectious agent, and in addressing the disease it causes. Transmission may occur through several different mechanisms. Respiratory diseases and meningitis are commonly acquired by contact with aerosolized droplets, spread by sneezing, coughing, talking, kissing or even singing. Gastrointestinal diseases are often acquired by ingesting contaminated food and water. Sexually transmitted diseases are acquired through contact with bodily fluids, generally as a result of sexual activity. Some infectious agents may be spread as a result of contact with a contaminated, inanimate object (known as a fomite), such as a coin passed from one person to another, while other diseases penetrate the skin directly.
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