HomeNewsWorld'Tridemic' overwhelms Canada's healthcare system: All you need to know

'Tridemic' overwhelms Canada's healthcare system: All you need to know

Children are particularly at a higher risk of the so-called tridemic, a triple threat of COVID-19, influenza and respiratory syncytial virus or RSV.

December 05, 2022 / 21:02 IST
Story continues below Advertisement
Representative image
Representative image

The Canadian healthcare system is struggling in the face of a “tridemic”— a triple threat of COVID-19, influenza (flu) and respiratory syncytial virus (RSV) after a rise in number of patients infected with these respiratory viruses across the country.

The situation has led hospitals across the country to arrange for appropriate measures to handle the extra load, Canada’s Global News said. The "tridemic" is the combination of three flu, Covid-19 and RSV viruses, the report said.

Story continues below Advertisement

According to the report, respiratory illness cases were on the up this year amid caution from the World Health Organization (WHO).

The neighbouring US, too, is seeking a spike in these cases, particularly among children.  Last month, the CDC reported approximately 40,000 new COVID cases and 2,000 deaths each week in the US, as total deaths reached well over a million since the start of the pandemic over two years ago.

COVID-19 Vaccine
Frequently Asked Questions

View more

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.
View more
+ Show