Measles vaccine | Improper dilution by the staff of the Department of Health

The vaccinators of the Center for Health Protection of the Department of Health made a human error and vaccinated school children with higher-than-normal doses of measles vaccine.

The Center for Health Protection announced today (3rd) that on the morning of February 27, the center's schoolchildren immunization team vaccinated the schoolchildren at the Sheng Kung Hui Yanli Memorial Primary School. After checking the vaccine records, it was found that "measles, mumps, German Measles and Varicella Mixed Vaccine (MMRV Vaccine) doses were deviated. After investigation, it was found that when the nurses prepared a MMRV vaccine, they did not perform the correct dilution procedure according to the center's guidelines. A Primary One student was injected with one Vaccines with higher concentrations than normal doses.

The center said that after consultation with experts, it is believed that inoculation of more than the recommended dose of vaccine will generally not affect the overall immune response or the effectiveness of the vaccine, but it may increase adverse reactions, such as local discomfort at the injection site or higher fever, etc. Schoolchildren are currently attending classes as usual without serious health problems In response, the medical staff has been suspended from duty.

Sheng Kung Hui Yan Li Memorial Primary School.

(Primary Overview)

40 students of Ke Wah Primary School in Kowloon Tong were actually infected with norovirus. The first patient vomited in class on Tuesday. Gastroenteritis broke out in Ke Wah Primary School. 20 schoolchildren and staff were sick and 3 were admitted to the hospital. Acute gastroenteritis broke out in the Chinese Church of Christ Kee Wah Primary School in Kowloon Tong. 27 students were sick and vomited. 1 person was admitted to the hospital for pulmonary tuberculosis｜1666 cases were reported in the second half of last year.