Can my friends pet my unvaccinated puppy

Friends with risks

Zoonoses are animal-borne diseases. It is hardly known that zoonotic pathogens can also occur in food and water (22).

One of the most commonly reported zoonoses caused by contaminated food is salmonellosis. The primary sources of infection are foods of animal origin. The pathogens can also spread to other foods or water. The disease manifests itself as gastroenteritis with severe diarrhea.

In the case of campylobacteriosis, infection occurs through the consumption of animal products contaminated with Campylobacter bacteria, especially poultry meat. Water or milk can also be sources of infection.

Through contaminated food or water, one can also become infected with single-celled intestinal parasites, the giardia, and develop the intestinal disease giardiosis. People with a weakened immune system are particularly susceptible to infection. Travelers should also be careful in countries with inadequate drinking water treatment.

Listeriosis manifests itself with flu-like symptoms. Listeria can contaminate both animal and vegetable foods. Sources of infection are, for example, minced meat, smoked fish, raw milk products or sushi. The chronically ill, patients under glucocorticoid therapy or after transplants, newborns and the elderly are particularly at risk. In pregnant women, the infection can spread to the child and damage it.

Toxoplasma gondii, the causative agent of toxoplasmosis, is normally transmitted from cats to humans. Infection can also occur through ingestion of raw meat infected with bradyzoites or food contaminated with oocytes. In healthy people, the infection usually has no symptoms. Progress with flu-like symptoms up to dangerous inflammation of organs such as the heart, lungs or brain are possible in immunocompromised people. If the child is infected for the first time during pregnancy, there is a risk of an abortion or severe damage to the child, depending on the stage.