HomeNewsWorldCanada to require COVID tests for passengers from China

Canada to require COVID tests for passengers from China

The requirement will apply to all air travelers aged two and older from the three countries and will begin on Jan. 5, the federal government said in a news release Saturday.

January 01, 2023 / 08:37 IST
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Source: AP
Source: AP

Canada plans to temporarily require people flying from China, Hong Kong and Macao to test negative for COVID-19 before leaving for Canada.

The requirement will apply to all air travelers aged two and older from the three countries and will begin on Jan. 5, the federal government said in a news release Saturday.

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“These planned health measures will apply to air travelers, regardless of nationality and vaccination status,” the release said. “They are temporary measures, in place for 30 days, that will be reassessed as more data and evidence becomes available.”

The United States announced on Wednesday it would require all travelers from China to show a negative COVID-19 test result before flying to the country as Beijing’s rapid easing of COVID-19 restrictions leads to a surge in cases.

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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