A total of 86 students aged 15 to 17 were hospitalized over their reactions after COVID-19 vaccination in a province in Vietnam on Wednesday, before being discharged one day later.

Authorities in Hoang Hoa District, Thanh Hoa Province began administering first doses of Pfizer-BioNTech vaccine to 6,690 students from 15 to 17 years old in 37 communes and towns on Wednesday, according to the district’s steering committee for COVID-19 prevention and control.

The inoculation campaign was planned to run through Thursday, according to the district’s plan.

On Wednesday evening, 86 students were hospitalized due to postvaccinal reactions, the steering committee said.

School administrators and families rushed them to the nearest medical facilities after they showed signs of nausea, headache, dizziness, and chills.

The students are being monitored at three hospitals in Hoang Hoa, with their health having stabilized.

They were thus discharged from the hospitals, health authorities announced on Thursday morning.

Thanh Hoa authorities had planned to administer 117,000 doses of Pfizer-BioNTech vaccine to children aged 15 to 17 in all districts, towns, and cities in the province on Wednesday and Thursday. 

They set up mobile vaccination sites at schools while organizing injection sessions for students with underlying medical conditions at medical facilities.

Last week, four factory workers in Thanh Hoa died of anaphylaxis while several others experienced complications after receiving their second doses of Vero Cell COVID-19 vaccine, produced by China’s Sinopharm.

Following the incident, health authorities in the north-central province halted the administration of Vero Cell jabs from batch B2021103398 pending further guidelines from the Ministry of Health.

Thanh Hoa has recorded over 2,600 local infections since the fourth outbreak hit Vietnam on April 27.

Local health authorities have administered more than 2.7 million vaccine shots.

Over two million people, or 77.06 percent of the province’s adult population, have received at least one dose, with 728,252 of them, accounting for 27.95 percent, having been jabbed twice.

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