Diarrhea is not contagious nor infectious; infectious stuff is only an pathogen (viruses, bacteria, parasites) and it's the same with contagious. I had diarrhea once but in my school no one got infected with it too. Infection and/or contagious diarrhea is just absurd.
Diarrhea and vomit themselves are not infectious, but the underlying causes such as viruses, bacteria, or parasites that may be present in them can be infectious. It is important to practice good hygiene, especially hand washing, to prevent the spread of infections.
Shigella are extremely infectious bacteria, and ingestion of just 10 organisms is enough to cause severe diarrhea and dehydration.
Some forms of diarrhea are infectious in etiology and the disease is communicable. Cholera is an example of this. Others are functional (e.g. laxative abuse) and are not communicable.
Common symptoms of infectious diseases in cats include fever, lethargy, loss of appetite, coughing, sneezing, and diarrhea. Treatment options may include antibiotics, antiviral medications, supportive care such as fluids and nutrition, and isolation to prevent the spread of the disease to other cats. It is important to consult a veterinarian for proper diagnosis and treatment.
If you have infectious diarrhea, you could shed pathogens (germs) in the water that could infect other swimmers. You should avoid swimming until your illness has passed.
Types of nursing include 'isolation' and/or 'barrier' nursing
Droplet isolation is a type of infection control measure used to prevent the spread of respiratory droplets containing infectious pathogens. It involves separating patients with a suspected or confirmed infectious disease that spreads through respiratory droplets, such as influenza or COVID-19, from others to limit transmission. Personal protective equipment, such as masks, goggles, and gowns, may be required when providing care to individuals in droplet isolation.
isolation - refers to the precautions that are taken in the hospital to prevent the spread of an infectious agent from an infected or colonized patient to susceptible persons.
strict
Viral Infection
The scientific name for Traveler's Diarrhea is "acute diarrhea of infectious etiology." It is commonly caused by bacteria such as Escherichia coli, and sometimes by parasites or viruses, and usually occurs when individuals from developed countries travel to developing regions.
Barrier isolation involves physical barriers, such as walls or doors, to separate an individual or group from others. This type of isolation is used in healthcare settings to prevent the spread of infectious diseases.