Not long after the new coronavirus first surfaced last December, an ambitious prediction was made: A vaccine would be available within 12 to 18 months, and it would stop the pandemic.
Despite serious challenges — how to mass manufacture, supply and deliver a vaccine worldwide — the first prong of that wish could well be fulfilled. Eight vaccine candidates are undergoing large-scale efficacy tests, so-called Phase 3 trials, and results are expected by the end of this year or early 2021.
But even if one, or more, of those efforts succeeds, a vaccine might not end the pandemic. This is partly because we seem to be focused at the moment on developing the kind of vaccine that may well prevent Covid-19, the disease, but that wouldn’t do enough to stop the transmission of SARS-CoV-2, the virus that causes Covid-19.
Doctors usually explain vaccines to patients and the parents of young children by describing how those protect us from a particular disease: An attenuated form of a pathogen, or just a bit of it, is inoculated into the human body in order to trigger its immune response; having learned to fight off that pathogen once, the body will remember how to fend off the disease should it be exposed to the same pathogen later.
A vaccine’s ability to forestall a disease is also how vaccine developers typically design — and how regulators typically evaluate — Phase 3 clinical trials for vaccine candidates.
Yet the best vaccines also serve another, critical, function: They block a pathogen’s transmission from one person to another. And this result, often called an “indirect” effect of vaccination, is no less important than the direct effect of preventing the disease caused by that pathogen. In fact, during a pandemic, it probably is even more important.
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- Californians can now access their COVID-19 vaccine records onlineon June 18, 2021 at 10:20 pm
California officials on Friday announced a way for residents to access their COVID-19 vaccine records digitally. The records, which can be used to gain access to businesses or events that require ...
- California gives residents digital access to their COVID-19 vaccine recordon June 18, 2021 at 8:57 pm
The state of California has launched a tool designed to give residents easy access to a digital copy of their COVID-19 vaccine information.
- Rangers To Host COVID-19 Vaccine Incentive On Monday At Globe Life Fieldon June 18, 2021 at 3:26 pm
The Texas Rangers announced Friday a “Vaccination At The Plate” event that will take place on Monday, June 21, when the team hosts the Oakland Athletics at 7:05 p.m. at Globe Life Field. All ...
- Rangers offer free tickets to fans who receive COVID-19 vaccine at Monday’s game vs. A’son June 18, 2021 at 2:12 pm
The Rangers will join in the incentivization-for-vaccination program throughout the country, offering free tickets to those who take a ...
- Joe Biden touts 300 million COVID-19 vaccine doses given in the US, warns of Delta varianton June 18, 2021 at 12:40 pm
President Joe Biden announced Friday the U.S. has administered 300 million COVID-19 shots, though it's still shy of 70% having one shot by July 4.
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- Relaxing Covid-19 curbs should be carefully calibrated: Centre to stateson June 19, 2021 at 12:58 am
The home secretary said that during the second Covid-19 wave, a significant surge in cases was witnessed in several states and UTs, and many of them imposed restrictions in order to contain the spread ...
- Centre directs states and UTs to step up the pace of COVID-19 vaccinationon June 19, 2021 at 12:39 am
The Centre also asked them to scrupulously ensure that there is 'no complacency in adhering to COVID appropriate behaviour' as activities are opened.
- Amid declining COVID-19 and reopening businesses, LA County urges Father’s Day, Juneteenth cautionon June 18, 2021 at 10:06 pm
County officials reported nine new COVID-19 deaths on Friday, raising the pandemic death toll to 24,435. Another 253 cases were confirmed, for a pandemic total of 1,247,216.
- Downtown Kelowna’s Earls ordered closed after COVID-19 transmissionon June 18, 2021 at 5:00 pm
One of downtown Kelowna’s most popular eateries has been ordered closed due to COVID-19 transmission. Earls on Top on Bernard Avenue will be closed from June 18 to June 27. “When a closure is ordered, ...
- Kelowna Earl's restaurant ordered to close due to COVID-19 transmissionon June 18, 2021 at 4:34 pm
The Earl's restaurant downtown Kelowna is one of two businesses ordered to close this week by Interior Health due to COVID-19 transmission.