Which diseases are classified as Class A and Class B infectious diseases?

Infectious diseases are highly prevalent in daily life. They are categorized into Class A and Class B infectious diseases. Which specific diseases fall under Class A and Class B?

Which diseases are included in Class A and Class B infectious diseases?

Class A infectious diseases—also known as “compulsorily managed infectious diseases”—comprise two diseases: plague and cholera. Class B infectious diseases—also referred to as “strictly managed infectious diseases”—include a total of 27 diseases, among them novel coronavirus infection (COVID-19) and severe acute respiratory syndrome (SARS).

Additional Class B diseases include: acquired immunodeficiency syndrome (AIDS), viral hepatitis, poliomyelitis, human infection with highly pathogenic avian influenza, measles, epidemic hemorrhagic fever, rabies, Japanese encephalitis, dengue fever, anthrax, bacillary dysentery, amoebic dysentery, pulmonary tuberculosis, typhoid fever, paratyphoid fever, meningococcal meningitis, pertussis (whooping cough), diphtheria, neonatal tetanus, scarlet fever, brucellosis, syphilis, schistosomiasis, malaria, and human infection with H7N9 avian influenza—totaling 27 diseases. Notably, SARS and pulmonary anthrax—though classified as Class B infectious diseases—require prevention and control measures equivalent to those applied for Class A diseases.

Class C infectious diseases—also termed “surveillance-managed infectious diseases”—include eleven diseases: influenza, mumps, rubella, acute hemorrhagic conjunctivitis, leprosy, epidemic and endemic typhus, kala-azar (visceral leishmaniasis), echinococcosis, cholera (excluding cases of cholera caused by *Vibrio cholerae* O1 or O139 serogroups), bacillary dysentery, typhoid and paratyphoid fevers, infectious diarrhea, and hand-foot-and-mouth disease. The above outlines the specific diseases included in Class A and Class B infectious diseases. We hope this response is helpful to you!