It is an epidemic.
A disease that spreads from continent to continent is called a pandemic. Pandemics affect a large number of people across multiple countries and continents.
When a disease spreads rapidly, it is called an "epidemic." This term refers to a situation where the number of cases of a disease exceeds what is normally expected in a specific area or population. If the outbreak spreads across multiple countries or continents, it may be classified as a "pandemic."
A long lasting and non-infectious disease is called a CHRONIC Disease.
Germs that spread from person to person to cause diseases are contagions.People who are then infected with the germ, only during the active phase of the germ's "life", are then referred to as being contagious.
Infectious Disease. (No, I am not being sarcastic) The study of disease is called pathology. The study of , say, the infectious disease Hepatitis would be under Hepatology. (Study of the liver and diseases involving the liver) The study of viruses would be called "virology".
Its called "pathogen".
The disease which is spread from person to person is called infectious disease. For example flu is a viral disease through which the other person is infected from the patient
An infectious agent is a pathogen (germ). There are six kinds of infectious agents.Here they are listed:BactiriaVirusFungiHelminthPrionProtizoa.
Infectious mononucleosis (also known as EBV infectious mononucleosis or Pfeiffer's disease and colloquially as kissing disease - from its oral distribution - or as mono in North America and as glandular fever in other English-speaking countries) is an infectious, very widespread viral disease caused by the Epstein-Barr virus, which well over 90% of all adults are exposed to at some point in their life.http://en.wikipedia.org/wiki/Infectious_mononucleosis
if the disease is caude by a microorganism, this is called ( infection
Polio
Usually a 'disease' doctor is called a Physician or Internist. Â