The video asks who may need extra care or a delay before COVID-19 vaccination, including people with a history of severe allergy, chronic conditions, blood-thinning medicines, fever, and older adults. The information below reflects US CDC guidance dated 23 September 2026 and is not a substitute for current Thai guidance or personal medical advice.
Contraindications and precautions are different
CDC guidance says a severe allergic reaction after a dose of a particular vaccine type, or to one of its components, is a contraindication to that same type. Another vaccine type may be considered in a usual vaccination setting after a professional assessment of the allergy history. A moderate or severe acute illness is a precaution; vaccination should be delayed until the person’s symptoms have improved.
Heart history and symptoms after a previous dose
CDC guidance says that after myocarditis or pericarditis occurring within three weeks of a COVID-19 vaccine, a subsequent dose should generally be avoided, with decisions assessed case by case. Other circumstances, including MIS-C or MIS-A and allergy history, require review of the full recommendations with a qualified healthcare professional.
Medications and chronic conditions
Whether a medicine or chronic condition affects vaccine timing or choice depends on the individual and current guidance. Discuss your health history and medicines with a qualified healthcare professional and follow current Thai public-health recommendations.
Original video
Watch the original video on YouTube.
References used for this summary
- CDC: COVID-19 vaccine contraindications and precautions, updated 23 September 2026
- WHO: COVID-19 vaccines questions and answers, 15 September 2026
These recommendations are time-sensitive and may differ by country. This page cannot determine whether vaccination is appropriate for a particular person. Ask a qualified healthcare professional.