Basic introduction: Traditional plague is an infectious disease caused by Yersinia pestis. The main vector of transmission is fleas, which are common in rodents such as mice.

Symptoms: elevated body temperature, fever, headache, chills, nausea, vomiting and other symptoms.

Transmission: through bites of infected fleas or direct contact with body fluids of infected animals.

Preventive measures: Pay attention to personal hygiene, avoid contact with pollutants, keep the environment clean, and use insect repellents and other anti-insect measures.

Basic introduction: Pneumonic plague is a severe type of plague, mainly spread through the air and caused by infecting the human respiratory tract.

Symptoms: fever, cough, chest pain, difficulty breathing and other symptoms.

Transmission route: Through close contact with an infected person, especially when the infected person coughs or sneezes, the pathogen enters the respiratory tract of others through the air.

Preventive measures: Pay attention to personal protection, avoid contact with respiratory secretions of patients, strengthen ventilation, wear masks and other protective measures.

Basic introduction: Cellular plague is a severe form of plague. The lesions form a special honeycomb-like structure, which is common in skin tissue.

Symptoms: Swelling, erythema, pain, ulceration and other symptoms appear on the skin, and a honeycomb-like structure forms in the affected area.

Transmission route: Contact with equipment, items, etc. containing plague pathogens, allowing the bacteria to invade the skin and cause infection.

Preventive measures: Maintain good personal hygiene and avoid contact with objects and areas where plague pathogens may be present.