Influenza A, Influenza B, and Mycoplasma pneumoniae infection pneumonia

Novel coronavirus (COVID-19) is a respiratory pathogen caused by a newly discovered coronavirus that can lead to severe illness. The virus exhibits two distinct epidemiological patterns: Type A transmission and Type B transmission. Type A refers to the spread of the virus from Hubei Province in China to other countries, while Type B refers to transmission occurring within different countries or regions. Type A transmission is the primary source of global COVID-19 spread, whereas Type B transmission indicates local spread outside of China. The virus can be transmitted through contact with infected secretions or contaminated surfaces, leading to infection in close contacts. Additionally, transmission may also occur via airborne aerosols and dust particles. To prevent the spread of the virus, both patients and healthcare workers are advised to take active preventive measures, including thorough hand hygiene, wearing masks, practicing proper cough etiquette, and avoiding contact with contaminated materials from infected individuals.