Tuesday, July 5, 2022

Vaccinated Singaporeans make up 75% of recent Covid-19 cases

Experts say infections reported by vaccinated people do not mean vaccines are ineffective.

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Three quarters of Singapore’s Covid-19 infections in the last four weeks were among people already vaccinated, government data shows, as a rapid ramp-up in the city-state’s inoculations leaves fewer people unvaccinated, Reuters is reporting.

Singapore has already inoculated nearly 75% of its 5.7 million people, the world’s second highest total after the UAE, a Reuters tracker shows, and half its population is fully vaccinated.

The lion city reported 1,096 locally transmitted cases in the last 28 days, of which 484, or 44%, were fully vaccinated people, while 30% were partially vaccinated and the remaining 25% were unvaccinated.

There were only seven severe cases requiring oxygen support and six of them were unvaccinated and one was partially vaccinated, the health ministry said.

Experts say infections reported by vaccinated people do not mean vaccines are ineffective.

“There is continuing evidence that vaccination helps to prevent serious disease if one gets infected,” the ministry said, adding all of the fully vaccinated infected people showed no symptoms or just mild symptoms.

“As more and more people are vaccinated in Singapore, we will see more infections happening among vaccinated people,” said Teo Yik Ying, dean of the Saw Swee Hock School of Public Health at the National University of Singapore (NUS).

“It is important to always compare it against the proportion of people who remain unvaccinated. Suppose Singapore achieves a rate of 100% fully vaccinated – then all infections will stem from the vaccinated people and none from the unvaccinated.”

The data also showed that infections in the last 14 days among vaccinated people aged over 61 were at about 88%, higher than the younger age group.

Linfa Wang, a professor at Duke-NUS Medical School, said elderly people have been shown to have weaker immune responses upon vaccination.

In Israel, which also has a high vaccination rate, about half of the 46 patients hospitalised as of early July in severe condition were vaccinated, and the majority were from higher risk groups, according to the health authorities.

It was not immediately clear whether the data reflects reduced protection offered by vaccines against the more contagious Delta variant, which has been the most common version of the virus in Singapore in recent months.

Singapore is using Pfizer-BioNTech vaccine and Moderna for its national vaccination programme.

It recorded 162 new locally-transmitted Covid-19 cases yesterday, close to an 11-month high from earlier this week.

The rise in cases prompted authorities to tighten curbs on social gatherings, as they push to boost vaccination rates, especially among the elderly.

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