COVID-19 Vaccination Concerns for Patients with Thalassemia - Family Medicine

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COVID-19 vaccine


Doctor, I have mild thalassemia.
After receiving the first dose of the AZ vaccine at the end of last year, I have had a persistent low-grade fever ranging from 37 to 38 degrees Celsius for almost three weeks.
I also have some rashes on my body, which I believe I had before the vaccination, so I'm not sure if they are an allergic reaction.
Additionally, I have experienced widespread pain.
I am due for my second dose soon, but I am a bit concerned about whether it is appropriate for me to continue with the vaccination.
The government has also recommended a third dose.
If my condition allows me to proceed with vaccination, should I receive the same AZ vaccine or consider mixing with another brand?

Fanrao, 30~39 year old female. Ask Date: 2022/03/02

Dr. Ye Qianyu reply Family Medicine


Hello! It is recommended that you go directly to a medical facility for a physician to examine you.
If the delayed skin reaction is not too severe, you may still receive the vaccine.
However, mixing vaccines may have stronger side effects and may not be suitable for everyone.

Reply Date: 2022/03/02

More Info


When it comes to COVID-19 vaccination for patients with thalassemia, particularly those with mild forms of the condition, there are several important considerations to keep in mind. Thalassemia is a genetic blood disorder that affects hemoglobin production, leading to anemia and other complications. Patients with thalassemia may have unique responses to vaccinations due to their underlying health conditions, and it’s crucial to weigh the benefits and risks of receiving the vaccine.

Firstly, it’s essential to understand that COVID-19 vaccines, including the AstraZeneca (AZ) vaccine, have been shown to be effective in preventing severe illness, hospitalization, and death from COVID-19. For patients with thalassemia, especially those who may have compromised immune systems or other health issues, vaccination is generally recommended. The benefits of vaccination in preventing COVID-19 complications typically outweigh the risks associated with potential side effects.

Regarding your experience after receiving the first dose of the AZ vaccine, it’s not uncommon for individuals to experience mild to moderate side effects, including fever, fatigue, and body aches. These symptoms are generally a sign that the body is building protection against the virus. However, if your fever persisted for three weeks, this is unusual and should be evaluated by your healthcare provider. Persistent fever could indicate an underlying issue that may need further investigation, especially in the context of your thalassemia.

As for the skin rash you mentioned, it’s important to differentiate between a pre-existing condition and a potential allergic reaction to the vaccine. If you suspect that the rash is related to the vaccine, it would be wise to discuss this with your healthcare provider, who may refer you to an allergist for further evaluation.

When considering the second dose of the vaccine, it is crucial to consult with your healthcare provider. They can assess your overall health, review your vaccination history, and determine whether it is safe for you to proceed with the second dose. If you are advised to continue with vaccination, your provider may recommend either receiving the same vaccine (AZ) or consider a mixed-dose approach with another vaccine, depending on the latest guidelines and your individual health status.

The Centers for Disease Control and Prevention (CDC) and other health authorities have provided guidance on mixed-dose vaccination strategies, which have shown to be effective in enhancing immune responses in some populations. However, the decision should be made in consultation with your healthcare provider, who can tailor recommendations based on your specific health needs and any potential risks.

In summary, while COVID-19 vaccination is generally recommended for patients with thalassemia, your individual response to the first dose and any side effects experienced should be thoroughly discussed with your healthcare provider. They can help determine the best course of action regarding your second dose and whether to continue with the same vaccine or consider a different one. Your health and safety are paramount, and professional medical advice is essential in navigating these decisions.

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