**Bacillus Paratyphoid B** (lat. Salmonella enterica subsp. enterica serovar Gallinarum) is the causative agent of acute intestinal infection, paratyphoidosis. Representatives of this species of Salmonella include 4 subspecies and 51 serovars. Paratyphoid bacilli can live both in the external and internal environment of the human body, exhibiting damaging properties. This subspecies of salmonella is a subspecies of salmonellin, the pathogenicity of which has been proven.
Infection occurs through nutritional means, including consumption of animal products and meat products. In the described cases, according to experts, up to seven percent of salmonella diseases caused by this subspecies of the Paratyphus bacillus occur precisely because of eating contaminated eggs or chicken meat. **Epidemiology** The main hosts of paratyphoid B are chickens, ducks and turkeys. They spread the infection after eating food containing bacteria of this subspecies. Chickens are carriers of Salmonella, however, they do not develop the disease. It is also possible to become infected with this subspecies of paratyphoid bacilli through contact with water, birds or animal carriers. People do not release bacteria into the environment, so most infections with the paratyphus bacillus pathogen occur as a result of ingestion of contaminated feces, hands, vegetables or fruits, or through close contact with an infected person