A nurse was sent into the Intensive Care Unit following the vaccination. Health officials said it's an independent case and there are no problems with the safety of the AZ vaccine.
A registered nurse in her forties at the Far Eastern Memorial Hospital is reportedly to exhibit acute allergic reaction following the inoculation of the AstraZeneca vaccine on the fourth day of the vaccination rollout. On the morning of March 24, the nurse was given the shot and experienced heart palpitation and rash five minutes later. She did not go into shock with her blood pressure maintaining at 170 mmHg. The patient was given steroid and antihistamine to treat the reaction in the 30 minutes of observation period. To be more cautious, the patient was later admitted into the Intensive Care Unit (ICU) for close observation for one day. The nurse was discharged on the morning of March 25.
The registered nurse suffered some acute allergic to the vaccine. The hospital, for caution's sake placed her in the ICU for observation. Her vital signs were stable during the period which led us to conclude that it was not a severe allergic reaction to the jab.
According to the Central Epidemic Command Center, up until the evening of the 24, a total of 4,000 medical workers have been inoculated with the AstraZeneca vaccine, and seven of them have reported mild adverse reaction to the jab, with one nurse exhibiting acute allergic reactions.
The Deputy Minister said reactions to vaccines vary from person to person and that only one out of the 4,000 vaccinated has shown such allergic reaction. The vaccine itself is safe. Fourteen more hospitals across the national are to be added to the original list of 58 designated health care centers for the rollout of the vaccination program.
The body might have existing antibodies which recognize this antigen, and thus the immune system made a rapid response. Acute allergic reactions can happen in an instant. A foreign case study has shown that people who showed adverse allergic reaction to vaccines or people who have severe allergy histories are more likely to exhibit allergic reactions post-vaccination. But this is the only case study I can find right now.
Dr. Huang said the human bodies have different reactions to vaccines with some experiencing stronger adverse reactions than others post-vaccination. According to an international observatory data agency, the possibility of anaphylaxis occurring following the inoculation of the Oxford-AztraZeneca vaccine is approximately 1 in 100,000. Countries in Asia have just begun the implementation of the AZ vaccines. It is yet to be observed whether Asians are more susceptible to acute allergic reaction to this specific jab.
國內AZ新冠疫苗開打至今進入第4天，現在傳出有醫護接種後出現急性過敏反應，是40多歲亞東醫院護理師，24號上午接種AZ疫苗5分鐘後發生心悸、皮疹的急性過敏反應，但血壓一直維持在170毫米汞柱，無休克，當時在30分鐘的觀察期間，現場同仁即給予類固醇與抗組織胺處理，並依院內同仁接種疫苗緊急事件處理流程，高規格收治至加護病房觀察一天後，已在上午出院。
衛福部次長 石崇良表示：「這一位護理同仁，出現一些過敏的反應。院方為了慎重起見，把他安置在加護病房進行觀察。這中間的生命徵象也都很穩定，所以初步的研判，也不屬於嚴重的不良反應。」
根據疫情指揮中心統計，截至24號晚間，全台共有4千位醫事人員接種AZ疫苗，約有7人出現輕微不良反應，1名護理師在接種疫苗後出現過敏反應，石崇良表示，疫苗施打後出現過敏與個人體質有關，且同一瓶疫苗只有一個個案發生不良反應，因此並不是疫苗出現問題，至於原本指揮中心已配送58家院所可施打疫苗，會再增加14家院所為施打據點。
台灣感染症醫學會理事長 黃立民表示：「體內可能已經有一些現存的抗體，會認識這個抗原，然後很快就驅動一個免疫反應。急性免疫反應是可以很快被驅動的，從國外的個案分析知道說，如果以前打過疫苗，有比較嚴重過敏的，或是有別的嚴重過敏史的，就比較容易(打疫苗後過敏)。可是這是唯一，目前唯一找得到的。」
醫師表示，疫苗接種後產生的反應事跟體質有關，有些民眾的體質確實在打完以苗後會有較強的反應，根據國外觀察數據發現，接種牛津疫苗引發過敏性休克的機率約10萬分之1，而亞洲國家最近才剛施打，是否亞洲人較容易發生過敏情況仍有待觀察。