Can ordinary mice get plague?

In daily life, mice are a relatively common animal, and mice are divided into many types. Different mice carry different germs and plague. Generally, not all mice carry plague. Plague is generally a virus transmitted by wild mice or cats, which can easily lead to life-threatening situations after infection in humans.

Do ordinary mice get plague?

Plague is a highly contagious disease with natural epidemic source caused by Yersinia pestis, also known as the Black Death. The main clinical manifestations are high fever, swollen and painful lymph nodes, bleeding tendency, special lung inflammation, etc. Not all mice have plague.

1. Source of infection: Plague is a typical natural epidemic disease. It usually spreads among rats before spreading to humans. The sources of infection (reservoir hosts) of plague among rodents include wild mice, groundhogs, foxes, wolves, cats, leopards, etc., among which the genera of Tenerife and Marmot are the most important. Among house mice, the yellow-breasted rat, the brown rat and the black rat are important sources of plague in humans. All types of patients can become sources of infection, with pneumonic plague being the most important. Blood in the early stages of septicemic plague is contagious. Bubonic plague only becomes a source of infection after an abscess ruptures or when fleas suck blood.

(ii) Transmission routes: Plague in animals and humans is mainly transmitted through rat fleas. When fleas suck the blood of rats containing pathogens, the bacteria multiply rapidly in the flea stomach, forming a bacterial plug that blocks the forestomach. When the fleas inhale blood again, the pathogens are regurgitated along with the inhaled blood and injected into the animal or human body. Flea feces also contain plague bacteria, which can enter the skin due to scratching. This "rat → flea → human" transmission method is the main way of transmission of plague. A few may be infected through broken skin or mucous membranes due to live contact with the sputum, pus of patients, or the skin, blood, and flesh of sick animals. Patients with pneumonic plague can spread the disease through droplets, causing a human pneumonic plague pandemic.

(III) Population susceptibility: People are generally susceptible to plague, regardless of gender or age. You can gain lasting immunity after the illness. Vaccination can provide a certain degree of immunity.

4. Epidemic characteristics

1. Natural foci of plague There are many natural foci of plague all over the world, and wild rat plague persists for a long time. Human plague is mostly transmitted from wild mice to domestic mice, and then from domestic mice to humans. Occasionally, people are infected by entering the epidemic area during hunting (catching marmots), inspections, construction, and military activities.

2. Epidemic: This disease is mostly spread from the epidemic area by means of transportation, forming exogenous plague, causing epidemics and pandemics.

3. Seasonality is related to rodent activity and flea reproduction. Plague in humans usually occurs from June to September. Pneumonic plague usually occurs after October.

4. Asymptomatic pharyngeal carriers have been found in epidemic areas