COVID-19 vaccine, Pediatrics FAQ

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COVID-19 Vaccination for Toddlers: Insights on Moderna and China Vaccines

COVID-19 vaccine Hello, doctor. My child is currently two years and seven months old and is in mainland China. Would you recommend getting vaccinated there before returning to Taiwan, or should we get the Moderna vaccine in Taiwan, or not vaccinate at all? My child has been hospi...


Dr. Xiao Kaiwen Reply:
The COVID-19 vaccines from mainland China have not been legally granted emergency authorization in Taiwan, and the assessment of their efficacy is not very clear. Therefore, we do not have a thorough understanding of the COVID-19 vaccines produced in mainland China. However, the ...

[Read More] COVID-19 Vaccination for Toddlers: Insights on Moderna and China Vaccines


Can Kids Safely Get Their Second COVID Vaccine After Oral Sores?

Oral ulcers after receiving the COVID-19 vaccine? Hello Dr. Pei, my son, who is over 5 years old, received his first dose of the pediatric BNT vaccine on May 28. A few days later, he developed five ulcers in his mouth, concentrated at the junction of the inside of his upper lip a...


Dr. Pei Rensheng Reply:
Hello, Ms. Hu! 1. There have indeed been recent reports of cases of oral ulcers occurring after receiving the COVID-19 vaccine; 2. This may be related to changes in the body's immune response, or it could be a mere correlation without a causal relationship; 3. Oral ulcers ar...

[Read More] Can Kids Safely Get Their Second COVID Vaccine After Oral Sores?


Bleeding at Vaccine Site in Children: What Parents Should Know

Bleeding at the vaccination site? Hello, a 7-year and 11-month-old child noticed a large bloodstain (about the size of a five-dollar coin) on the cotton ball at the injection site after receiving the second dose of the pediatric BNT vaccine. This has never happened with previous ...


Dr. Xiao Kaiwen Reply:
The current BNT COVID-19 vaccine for children aged 5-11 is administered via intramuscular injection into the deltoid muscle of the upper arm, rather than through intravenous injection. The depth of this intramuscular injection does not pass through major blood vessels, so the the...

[Read More] Bleeding at Vaccine Site in Children: What Parents Should Know


Bleeding at Vaccine Injection Site in Children: What to Know

Bleeding at the vaccination site? Hello, a 7-year and 11-month-old child experienced a large blood stain (approximately the size of a five-dollar coin) on the cotton ball at the injection site after receiving the second dose of the pediatric BNT vaccine. This has never happened a...


Dr. Xiao Kaiwen Reply:
The current BNT COVID-19 vaccine for children aged 5-11 is administered via intramuscular injection in the deltoid muscle of the upper arm, rather than intravenously. The depth of this intramuscular injection does not involve major blood vessels, so the theoretical risk of the va...

[Read More] Bleeding at Vaccine Injection Site in Children: What to Know


Does COVID Vaccine Still Offer Protection After Positive Test in Kids?

COVID-19 vaccine Doctor, my child is 12 years old and received the first dose of the BNT vaccine, but tested positive for COVID-19 two days later through a rapid test and was confirmed positive during a telemedicine consultation. Does this mean the BNT vaccine was ineffective? Wi...


Dr. Pei Rensheng Reply:
Hello: After vaccination, it takes an average of two weeks to develop protective immunity. After contracting COVID-19, you must wait 90 days before receiving another COVID-19 vaccine. The previously administered vaccine still counts as the first dose, and you should start from th...

[Read More] Does COVID Vaccine Still Offer Protection After Positive Test in Kids?


Guidelines for Administering BNT Vaccine to Children After COVID Exposure

Administration of the BNT vaccine for children? Hello, doctor. I would like to inquire about vaccination issues. Since I am unsure whether my 5-year-old child has been infected with COVID-19 (the mother, who lives with him, has tested positive), the child experienced a high tempe...


Dr. Xiao Kaiwen Reply:
Unless there is a "confirmed" case of COVID-19, a three-month interval is required before administering the COVID-19 vaccine. Since your child is not a confirmed case, as long as their current health status is suitable, they can receive the BNT COVID-19 vaccine.

[Read More] Guidelines for Administering BNT Vaccine to Children After COVID Exposure


Guidelines for Kawasaki Disease Patients on Choosing COVID-19 Vaccines

Patients with Kawasaki disease should consider the following when selecting and receiving the COVID-19 vaccine: 1. **Timing of Vaccination**: It is important to consult with a healthcare provider regarding the appropriate timing for vaccination, especially if the patient has rec...


Dr. Xie Wanghu Reply:
Hello! Since each person's condition varies, it is advisable to have your attending physician evaluate it. Thank you.

[Read More] Guidelines for Kawasaki Disease Patients on Choosing COVID-19 Vaccines


Vaccination, Weight Concerns, and Medication for Infants: Expert Insights

Breastfeeding, growth, and medication issues in infants and young children? Hello, doctor. My baby just turned one year old and is due for the MMR and varicella vaccines. Due to the pandemic, we didn't go to the hospital where he was born, but instead took him to a nearby cl...


Dr. Xiao Kaiwen Reply:
MMR and varicella vaccines can be administered simultaneously at different sites; however, if given separately, they should be spaced at least one month apart. If your child's growth curve remains consistent with previous measurements and their development is normal, along w...

[Read More] Vaccination, Weight Concerns, and Medication for Infants: Expert Insights