HomeHealth & FitnessCOVID-19 surge in Hong Kong and Singapore: A wake-up call for Asia?

COVID-19 surge in Hong Kong and Singapore: A wake-up call for Asia?

According to latest reports COVID-19 cases are rising sharply in Singapore, Hong Kong,and across Asia. Health authorities urge preventive measures, personal responsibility, and vaccine vigilance to help curb another potentially disruptive wave.

May 16, 2025 / 16:24 IST
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In Hong Kong, the week ending May 3 saw a worrying increase in severe cases, with the highest number recorded in nearly a year.
In Hong Kong, the week ending May 3 saw a worrying increase in severe cases, with the highest number recorded in nearly a year

The recent surge of COVID-19 cases in Hong Kong and Singapore serves as a stark reminder that the pandemic is far from over, particularly in Asia. While both cities have made substantial progress in controlling the virus, the current uptick in infections suggest the need for ongoing vigilance and preparedness.

As the virus continues to spread in densely populated urban areas, health authorities are closely monitoring the situation, stressing on the importance of maintaining safety measures to prevent further rise. In Hong Kong, the week ending May 3 saw a worrying increase in severe cases, with the highest number recorded in nearly a year. This surge is accompanied by a small rise in positive respiratory samples, which indicates an increase in viral activity.

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Rise in cases

Although the current wave has not yet reached the scale of previous surges, hospital admissions are steadily rising, and there are signs of rapid transmission within the city. The presence of the virus in sewage systems suggests that the virus is circulating more widely, further indicating the need for heightened awareness and precautionary measures.

COVID-19 Vaccine
Frequently Asked Questions

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How does a vaccine work?

A vaccine works by mimicking a natural infection. A vaccine not only induces immune response to protect people from any future COVID-19 infection, but also helps quickly build herd immunity to put an end to the pandemic. Herd immunity occurs when a sufficient percentage of a population becomes immune to a disease, making the spread of disease from person to person unlikely. The good news is that SARS-CoV-2 virus has been fairly stable, which increases the viability of a vaccine.

How many types of vaccines are there?

There are broadly four types of vaccine — one, a vaccine based on the whole virus (this could be either inactivated, or an attenuated [weakened] virus vaccine); two, a non-replicating viral vector vaccine that uses a benign virus as vector that carries the antigen of SARS-CoV; three, nucleic-acid vaccines that have genetic material like DNA and RNA of antigens like spike protein given to a person, helping human cells decode genetic material and produce the vaccine; and four, protein subunit vaccine wherein the recombinant proteins of SARS-COV-2 along with an adjuvant (booster) is given as a vaccine.

What does it take to develop a vaccine of this kind?

Vaccine development is a long, complex process. Unlike drugs that are given to people with a diseased, vaccines are given to healthy people and also vulnerable sections such as children, pregnant women and the elderly. So rigorous tests are compulsory. History says that the fastest time it took to develop a vaccine is five years, but it usually takes double or sometimes triple that time.
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