The most common causes are viruses, bacteria, fungi and parasites. Humans can also become infected following exposure to an infected animal that harbors a. Infectious disease is a process caused by an agent, often a microorganism, that impairs a person’s health
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Infectious diseases typically are caused by bacteria, viruses, fungi, or parasites.
The meaning of infectious disease is a disease (such as influenza, malaria, meningitis, rabies, or tetanus) caused by the entrance into the body of pathogenic agents or microorganisms (such as bacteria, viruses, protozoans, or fungi) which grow and multiply there.
Infectious disease control and prevention relies on a thorough understanding of the factors determining transmission This article summarizes the fundamental principles of infectious disease transmission while highlighting many of the agent, host,. Infectious diseases are illnesses that happen when tiny living beings get inside the body and multiply Bacteria, viruses, fungi and parasites are examples of organisms that can cause illness.
Infectious disease one due to organisms ranging in size from viruses to parasitic worms It may be contagious in origin, result from nosocomial organisms, or be due to endogenous microflora from the nose and throat, skin, or bowel An emerging infectious disease is one that is endemic in a given population but that has begun increasing in frequency or developing. Infectious diseases are disorders that are caused by organisms, usually microscopic in size, such as bacteria, viruses, fungi, or parasites that are passed, directly or indirectly, from one person to another
