Virulent
A viroid is an infectious agent that consists of a small strand of RNA and that causes disease in plants.
Asthma is not infectious disease. It does not spread from one person to other person.
A prion is a small infectious particle that contains a misfolded protein. These contain no DNA or RNA. These cause Creutzfeldt-Jakob disease, Scrapie in sheep and Kuru. These are deadly and progressive nerve wasting diseases.A plant pathologist discovered an infectious RNA particle smaller than a virus that causes diseases in plants. He called it a viroid. Millions each year are lost by these viroids. These contain only RNA.These two are the smallest infectious particles. They are not called microorganisms because they are not alive any more than viruses are.
many diseases are related with microbes and parasites and this therefore requires a clear knowledge on how to deal with them when they knock your door. microbiology helps us to know the behavior in gestation,longevity,feeding and favorable conditions of contraction among others.
Microorganisms are very harm full to us because some microorganisms are in the category of VIRUS like microorganisms which causes AIDS.Microorganisms are only seen by microscope. By TaNiShq SaHu
A pathogen causes infectious disease. For instance, influenza virus is the pathogen that causes flu.
A viroid is an infectious agent that consists of a small strand of RNA and that causes disease in plants.
Its called "pathogen".
Asthma is not infectious disease. It does not spread from one person to other person.
Botulism
infectious proteins called prions
An infectious agent is a pathogen (germ). There are six kinds of infectious agents.Here they are listed:BactiriaVirusFungiHelminthPrionProtizoa.
Infectious diseases involve a causative organism, from groups such as bacteria, viruses, fungi, and such. Noninfectious diseases involve causes other than specific infectious organisms.
Not directly, but the infectious microorganism that causes the disease may produce a toxin that is the cause of some of the disease's symptoms. Not every disease causing microorganism produces a toxin.
A pathogen is a microscopic organism, such as a virus, bacterium, fungus, or parasite, that causes disease in its host. Pathogens can infect humans, animals, plants, and even other microorganisms.
The flu viruses cause the infectious respiratory disease known as influenza.
A pathogen or infectious agent is a biological agent that causes disease or illness to its host.