Singapore Covid-19 vaccine (Pfizer and Moderna): Adverse reactions…



3 people experienced severe allergic reaction to COVID-19 vaccine; symptoms ‘promptly detected and treated’: MOH

28 Jan 2021 10:59PM(Updated: 29 Jan 2021 08:23AM)

SINGAPORE: Three cases of anaphylaxis – or rapid onset of severe allergic reactions – were reported out of the more than 113,000 people who have received the COVID-19 vaccine to date, the Ministry of Health (MOH) said on Thursday (Jan 28).

“The individuals, in their 20s and 30s, developed multiple symptoms such as rash, breathlessness, lip swelling, throat tightness and giddiness,” said MOH.

“All three individuals had a history of allergies, including allergic rhinitis and food allergy such as to shellfish, but none had a history of anaphylaxis which would have precluded them from receiving the vaccine.”

It added: “Anaphylaxis can be controlled when detected and treated in a timely manner. As all vaccinated persons in Singapore are closely monitored, the symptoms in these three individuals were promptly detected and treated.”

All three have recovered from the episode and were discharged from the hospital after a day’s observation or treatment.

MOH said the incidence rate of anaphylaxis locally is currently about 2.7 per 100,000 doses administered, similar to rates reported abroad. 

Associate Professor Kenneth Mak, director of medical services at MOH said that anaphylaxis was a known side effect of the vaccine. 

“Anaphylaxis is a known but rare side effect of the Pfizer-BioNTech COVID-19 vaccine. As with all vaccines, there will always be a small proportion of susceptible persons who experience severe allergic reactions upon vaccination,” he said. 

“We have put in place precautionary measures such as pre-vaccination screening and post-vaccination observation, to ensure that our vaccination programme can be carried out safely.”


More than 113,000 people in Singapore receive first dose of COVID-19 vaccine: MOH

28 Jan 2021 10:34PM(Updated: 29 Jan 2021 09:53AM)

SINGAPORE: More than 113,000 people have received the first dose of the COVID-19 vaccine, the Ministry of Health (MOH) said in an update on Thursday (Jan 28).

More than 50 have also received their second dose and completed the full vaccination regimen. 

The numbers are expected to go up in the coming weeks as vaccination operations continue, MOH said. 

Polyclinics and selected Public Health Preparedness Clinics (PHPCs) will also serve as vaccination sites. Seniors can currently be vaccinated at nine polyclinics and 21 PHPCs. 

From next Monday, all 20 polyclinics across Singapore will also begin offering COVID-19 vaccinations, MOH said. 

Vaccinations for senior citizens aged 70 and above began on Wednesday at Ang Mo Kio and Tanjong Pagar.

More than 250 were vaccinated on the first day, MOH said.

Sign-ups for COVID-19 vaccination by seniors have been encouraging, the ministry said, adding that it expects more seniors to sign up in the coming days.

“As of Jan 27, we have sent personalised letters to more than 10,000 seniors in Ang Mo Kio and Tanjong Pagar, and more than one third of them have booked their appointments within two days of receiving the invitation,” MOH said.

“The remaining seniors in these areas will receive their invitation letters in the coming week.” 

These letters will be progressively sent out to seniors across Singapore from mid-February.


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