COVID-19: Herd immunity explained
Videos
-
COVID-19: Herd immunity explained
01:43 | May 8, 2021
-
COVID-19: Canada’s 6th wave has plateaued or is post-peak in some areas, Tam says
01:10 | May 6, 2022
-
2 new Omicron sub-variants discovered as COVID-19 cases continue to decline globally: WHO
02:29 | May 4, 2022
-
COVID-19: Canada’s top doctor recommends still wearing masks as BA.2 variant fuels 6th wave
02:04 | April 12, 2022
-
Trucker convoy: Protesters adorn Terry Fox statue with pro-trucker slogans, Canadian flag
02:18 | January 29, 2022
-
Trucker convoy: Blaring horns, cheers as hundreds descend on Parliament
03:06 | January 29, 2022
-
Trucker convoy: Horns blare outside Parliament as trucker protest assembles
01:06 | January 29, 2022
-
Trucker convoy: Fireworks, cheers see off convoy headed to Ottawa from New Brunswick
02:38 | January 29, 2022
-
Trucker convoy arrives in Ottawa to protest COVID-19 vaccine mandates
03:19 | January 29, 2022
-
COVID-19: No new restrictions in Alberta, Saskatchewan to slow Omicron spread
02:07 | December 31, 2021
-
Unprecedented COVID-19 case numbers could change protocols
02:22 | December 30, 2021
-
U.S. COVID-19 Omicron variant spread dampens new year cheer
02:02 | December 29, 2021
-
Quebec to allow some COVID-19 infected health workers to stay on job
02:04 | December 28, 2021
-
U.K. nations except England tighten COVID-19 rules
01:45 | December 28, 2021
-
COVID-19: CDC reduces quarantine guidelines as Omicron cases surge
01:52 | December 28, 2021
-
Bringing your Omicron questions to a physician
06:56 | December 5, 2021
-
Arrival tests may come for U.S. travel if Omicron presence increases: Alghabra
12:17 | December 5, 2021
-
Canadians should not get hung up on primary COVID-19 vaccines vs. booster shots, NACI says
05:09 | December 3, 2021
-
Immunization against COVID-19 should remain top priority: NACI
00:53 | December 3, 2021
-
NACI recommends longer interval between COVID-19 vaccine doses, Pfizer preferred over Moderna for Canadians aged 12-29
01:14 | December 3, 2021
-
NACI ‘strongly’ recommends COVID-19 vaccine booster for Canadians aged 50+, ‘may’ be offered to those aged 18-49
02:03 | December 3, 2021
-
Trudeau defends role in removing vaccine barriers as Omicron variant threatens fight against COVID-19
01:17 | December 1, 2021
-
COVID-19: South Africa calls for calm over international response to Omicron variant
02:20 | November 28, 2021
-
Unvaccinated soldiers put others at risk: Gen. Eyre
12:12 | November 28, 2021
-
Europe once again the epicentre of the COVID-19 pandemic
02:00 | November 14, 2021
-
47 million Americans have been infected with COVID-19
01:58 | November 13, 2021
-
Yukon becomes new COVID-19 hotspot in Canada
02:22 | November 13, 2021
-
COVID-19: Canada may be in for a ‘bumpy ride’ through winter, Tam says
04:00 | November 5, 2021
-
G20 summit: Freeland says Canada to donate 200M doses of COVID-19 vaccines by end of 2022
01:50 | October 30, 2021
-
Trudeau says Canada doing its part to help poorer nations access COVID-19 vaccines
01:17 | October 29, 2021
-
Disobeying clear vaccine policies seen as noncompliance in EI claims: Qualtrough
07:24 | October 24, 2021
-
People with allergic reaction to 1st COVID vaccine can ‘safely receive future doses’: NACI
02:57 | October 22, 2021
-
COVID-19: Herd immunity explained
01:43 | May 8, 2021
-
COVID-19: Canada’s 6th wave has plateaued or is post-peak in some areas, Tam says
01:10 | May 6, 2022
-
2 new Omicron sub-variants discovered as COVID-19 cases continue to decline globally: WHO
02:29 | May 4, 2022
-
COVID-19: Canada’s top doctor recommends still wearing masks as BA.2 variant fuels 6th wave
02:04 | April 12, 2022
-
Trucker convoy: Protesters adorn Terry Fox statue with pro-trucker slogans, Canadian flag
02:18 | January 29, 2022
-
Trucker convoy: Blaring horns, cheers as hundreds descend on Parliament
03:06 | January 29, 2022
-
Trucker convoy: Horns blare outside Parliament as trucker protest assembles
01:06 | January 29, 2022
-
Trucker convoy: Fireworks, cheers see off convoy headed to Ottawa from New Brunswick
02:38 | January 29, 2022
-
Trucker convoy arrives in Ottawa to protest COVID-19 vaccine mandates
03:19 | January 29, 2022
-
COVID-19: No new restrictions in Alberta, Saskatchewan to slow Omicron spread
02:07 | December 31, 2021
-
Unprecedented COVID-19 case numbers could change protocols
02:22 | December 30, 2021
-
U.S. COVID-19 Omicron variant spread dampens new year cheer
02:02 | December 29, 2021
-
Quebec to allow some COVID-19 infected health workers to stay on job
02:04 | December 28, 2021
-
U.K. nations except England tighten COVID-19 rules
01:45 | December 28, 2021
-
COVID-19: CDC reduces quarantine guidelines as Omicron cases surge
01:52 | December 28, 2021
-
Bringing your Omicron questions to a physician
06:56 | December 5, 2021
-
Arrival tests may come for U.S. travel if Omicron presence increases: Alghabra
12:17 | December 5, 2021
-
Canadians should not get hung up on primary COVID-19 vaccines vs. booster shots, NACI says
05:09 | December 3, 2021
-
Immunization against COVID-19 should remain top priority: NACI
00:53 | December 3, 2021
-
NACI recommends longer interval between COVID-19 vaccine doses, Pfizer preferred over Moderna for Canadians aged 12-29
01:14 | December 3, 2021
-
NACI ‘strongly’ recommends COVID-19 vaccine booster for Canadians aged 50+, ‘may’ be offered to those aged 18-49
02:03 | December 3, 2021
-
Trudeau defends role in removing vaccine barriers as Omicron variant threatens fight against COVID-19
01:17 | December 1, 2021
-
COVID-19: South Africa calls for calm over international response to Omicron variant
02:20 | November 28, 2021
-
Unvaccinated soldiers put others at risk: Gen. Eyre
12:12 | November 28, 2021
-
Europe once again the epicentre of the COVID-19 pandemic
02:00 | November 14, 2021
-
47 million Americans have been infected with COVID-19
01:58 | November 13, 2021
-
Yukon becomes new COVID-19 hotspot in Canada
02:22 | November 13, 2021
-
COVID-19: Canada may be in for a ‘bumpy ride’ through winter, Tam says
04:00 | November 5, 2021
-
G20 summit: Freeland says Canada to donate 200M doses of COVID-19 vaccines by end of 2022
01:50 | October 30, 2021
-
Trudeau says Canada doing its part to help poorer nations access COVID-19 vaccines
01:17 | October 29, 2021
-
Disobeying clear vaccine policies seen as noncompliance in EI claims: Qualtrough
07:24 | October 24, 2021
-
People with allergic reaction to 1st COVID vaccine can ‘safely receive future doses’: NACI
02:57 | October 22, 2021
COVID-19: Herd immunity explained
Description
May 8, 2021
Here’s how herd immunity works, and why it might be hard to achieve with COVID-19.
-
COVID-19: Herd immunity explained01:43 | May 8, 2021 -
COVID-19: Canada’s 6th wave has plateaued or is post-peak in some areas, Tam says01:10 | May 6, 2022 -
2 new Omicron sub-variants discovered as COVID-19 cases continue to decline globally: WHO02:29 | May 4, 2022 -
COVID-19: Canada’s top doctor recommends still wearing masks as BA.2 variant fuels 6th wave02:04 | April 12, 2022 -
Trucker convoy: Protesters adorn Terry Fox statue with pro-trucker slogans, Canadian flag02:18 | January 29, 2022 -
Trucker convoy: Blaring horns, cheers as hundreds descend on Parliament03:06 | January 29, 2022 -
Trucker convoy: Horns blare outside Parliament as trucker protest assembles01:06 | January 29, 2022 -
Trucker convoy: Fireworks, cheers see off convoy headed to Ottawa from New Brunswick02:38 | January 29, 2022 -
Trucker convoy arrives in Ottawa to protest COVID-19 vaccine mandates03:19 | January 29, 2022 -
COVID-19: No new restrictions in Alberta, Saskatchewan to slow Omicron spread02:07 | December 31, 2021 -
Unprecedented COVID-19 case numbers could change protocols02:22 | December 30, 2021 -
U.S. COVID-19 Omicron variant spread dampens new year cheer02:02 | December 29, 2021 -
Quebec to allow some COVID-19 infected health workers to stay on job02:04 | December 28, 2021 -
U.K. nations except England tighten COVID-19 rules01:45 | December 28, 2021 -
COVID-19: CDC reduces quarantine guidelines as Omicron cases surge01:52 | December 28, 2021 -
Bringing your Omicron questions to a physician06:56 | December 5, 2021 -
Arrival tests may come for U.S. travel if Omicron presence increases: Alghabra12:17 | December 5, 2021 -
Canadians should not get hung up on primary COVID-19 vaccines vs. booster shots, NACI says05:09 | December 3, 2021 -
Immunization against COVID-19 should remain top priority: NACI00:53 | December 3, 2021 -
NACI recommends longer interval between COVID-19 vaccine doses, Pfizer preferred over Moderna for Canadians aged 12-2901:14 | December 3, 2021 -
NACI ‘strongly’ recommends COVID-19 vaccine booster for Canadians aged 50+, ‘may’ be offered to those aged 18-4902:03 | December 3, 2021 -
Trudeau defends role in removing vaccine barriers as Omicron variant threatens fight against COVID-1901:17 | December 1, 2021 -
COVID-19: South Africa calls for calm over international response to Omicron variant02:20 | November 28, 2021 -
Unvaccinated soldiers put others at risk: Gen. Eyre12:12 | November 28, 2021 -
Europe once again the epicentre of the COVID-19 pandemic02:00 | November 14, 2021 -
47 million Americans have been infected with COVID-1901:58 | November 13, 2021 -
Yukon becomes new COVID-19 hotspot in Canada02:22 | November 13, 2021 -
COVID-19: Canada may be in for a ‘bumpy ride’ through winter, Tam says04:00 | November 5, 2021 -
G20 summit: Freeland says Canada to donate 200M doses of COVID-19 vaccines by end of 202201:50 | October 30, 2021 -
Trudeau says Canada doing its part to help poorer nations access COVID-19 vaccines01:17 | October 29, 2021 -
Disobeying clear vaccine policies seen as noncompliance in EI claims: Qualtrough07:24 | October 24, 2021 -
People with allergic reaction to 1st COVID vaccine can ‘safely receive future doses’: NACI02:57 | October 22, 2021
-
COVID-19: Herd immunity explained01:43 | May 8, 2021
-
COVID-19: Canada’s 6th wave has plateaued or is post-peak in some areas, Tam says01:10 | May 6, 2022
-
2 new Omicron sub-variants discovered as COVID-19 cases continue to decline globally: WHO02:29 | May 4, 2022
-
COVID-19: Canada’s top doctor recommends still wearing masks as BA.2 variant fuels 6th wave02:04 | April 12, 2022
-
Trucker convoy: Protesters adorn Terry Fox statue with pro-trucker slogans, Canadian flag02:18 | January 29, 2022
-
Trucker convoy: Blaring horns, cheers as hundreds descend on Parliament03:06 | January 29, 2022
-
Trucker convoy: Horns blare outside Parliament as trucker protest assembles01:06 | January 29, 2022
-
Trucker convoy: Fireworks, cheers see off convoy headed to Ottawa from New Brunswick02:38 | January 29, 2022
-
Trucker convoy arrives in Ottawa to protest COVID-19 vaccine mandates03:19 | January 29, 2022
-
COVID-19: No new restrictions in Alberta, Saskatchewan to slow Omicron spread02:07 | December 31, 2021
-
Unprecedented COVID-19 case numbers could change protocols02:22 | December 30, 2021
-
U.S. COVID-19 Omicron variant spread dampens new year cheer02:02 | December 29, 2021
-
Quebec to allow some COVID-19 infected health workers to stay on job02:04 | December 28, 2021
-
U.K. nations except England tighten COVID-19 rules01:45 | December 28, 2021
-
COVID-19: CDC reduces quarantine guidelines as Omicron cases surge01:52 | December 28, 2021
-
Bringing your Omicron questions to a physician06:56 | December 5, 2021
-
Arrival tests may come for U.S. travel if Omicron presence increases: Alghabra12:17 | December 5, 2021
-
Canadians should not get hung up on primary COVID-19 vaccines vs. booster shots, NACI says05:09 | December 3, 2021
-
Immunization against COVID-19 should remain top priority: NACI00:53 | December 3, 2021
-
NACI recommends longer interval between COVID-19 vaccine doses, Pfizer preferred over Moderna for Canadians aged 12-2901:14 | December 3, 2021
-
NACI ‘strongly’ recommends COVID-19 vaccine booster for Canadians aged 50+, ‘may’ be offered to those aged 18-4902:03 | December 3, 2021
-
Trudeau defends role in removing vaccine barriers as Omicron variant threatens fight against COVID-1901:17 | December 1, 2021
-
COVID-19: South Africa calls for calm over international response to Omicron variant02:20 | November 28, 2021
-
Unvaccinated soldiers put others at risk: Gen. Eyre12:12 | November 28, 2021
-
Europe once again the epicentre of the COVID-19 pandemic02:00 | November 14, 2021
-
47 million Americans have been infected with COVID-1901:58 | November 13, 2021
-
Yukon becomes new COVID-19 hotspot in Canada02:22 | November 13, 2021
-
COVID-19: Canada may be in for a ‘bumpy ride’ through winter, Tam says04:00 | November 5, 2021
-
G20 summit: Freeland says Canada to donate 200M doses of COVID-19 vaccines by end of 202201:50 | October 30, 2021
-
Trudeau says Canada doing its part to help poorer nations access COVID-19 vaccines01:17 | October 29, 2021
-
Disobeying clear vaccine policies seen as noncompliance in EI claims: Qualtrough07:24 | October 24, 2021
-
People with allergic reaction to 1st COVID vaccine can ‘safely receive future doses’: NACI02:57 | October 22, 2021
COVID-19: Herd immunity explained
Description
May 8, 2021
Here’s how herd immunity works, and why it might be hard to achieve with COVID-19.
National News
-
Canada’s role in historic emergency oil reserve release1:536 hours ago -
U.S. reportedly responsible for deadly strike on Iran school1:596 hours ago -
Iran war: Ships struck in Strait of Hormuz, oil reserves tapped2:086 hours ago -
NDP floor-crosser brings Carney’s Liberals to brink of majority3:086 hours ago -
Global National: March 1122:076 hours ago -
Trump says he has ‘much better blood’ because his uncle was MIT professor for 41 years1:146 hours ago -
Trump says U.S. ‘won’ in Iran but ‘got to finish the job’2:416 hours ago -
‘Industry pressure’ slowing efforts to keep animal tranquillizers out of drug supply2:127 hours ago -
Wetaskiwin council stays silent on mayor’s ban from city hall1:417 hours ago -
Edmonton police warn public regarding sextortion cases targeting youth1:537 hours ago
Advertisement
Top News
-
Senior Iranian official loses attempt to ban public from deportation hearing2:0010 hours ago -
‘Your government stands with you’: Feds announce $10M for security at synagogues, community centres2:3612 hours ago -
Carney making ‘back-room deals’ to try to ‘stitch together’ a majority, NDP leader says4:4412 hours ago -
Business Matters: Iran warns oil prices could surge to $200 a barrel as war stretches on2:3813 hours ago -
Boston lead singer Tommy DeCarlo dead at 600:2513 hours ago -
Iran’s new supreme leader expected to continue hardline theocracy2:4713 hours ago -
U.S. launches ‘most intense day’ of strikes on Iran2:0213 hours ago -
Iranian women’s soccer players face calls from diaspora to stay in Australia after 5 seek asylum1:391 day ago -
‘Absolutely unacceptable’: Ford condemns shooting of Toronto synagogues, US consulate3:552 days ago -
Poilievre condemns ‘gun attack’ at U.S. consulate in Toronto2:002 days ago
Sponsored Content
Global National
-
Global National: March 1122:076 hours ago -
Global National: March 1021:531 day ago -
Global National: March 921:542 days ago -
Global National: March 722:044 days ago -
Global National: March 621:465 days ago -
Global National: March 522:016 days ago -
Global National: March 422:001 week ago -
Global National: March 322:551 week ago -
Global National: March 221:241 week ago -
Global National: March 121:371 week ago
Trending
-
Federal gun buyback program launches, drawing mixed reaction1:312 months ago -
Senior Iranian official loses attempt to ban public from deportation hearing2:0010 hours ago -
Canadian passport one of the best for visa-free travel globally0:411 day ago -
Business Matters: Surging oil prices threaten global economy, G7 discuss but don’t release stockpiles2:022 days ago -
Northeast Calgary hit and run leaves child with broken leg: police2:041 day ago -
Carney making ‘back-room deals’ to try to ‘stitch together’ a majority, NDP leader says4:4412 hours ago -
Iran war: How rising oil prices will affect Canadian grocery prices, mortgages1:552 days ago
Canada
-
‘Industry pressure’ slowing efforts to keep animal tranquillizers out of drug supply2:127 hours ago -
Burnaby road rage incident caught on dashcam0:499 hours ago -
Carney says oil energy exports have ‘never been higher’ as Poilievre calls for strategic oil stockpile3:2510 hours ago -
Details of firearms used in Tumbler Ridge shooting ‘will be addressed’1:2513 hours ago -
Elementary school teachers in Ontario to receive $750 cards to buy class supplies2:0513 hours ago -
Animal welfare investigating abandonment of three snakes outside Whitby reptile zoo1:3713 hours ago -
Calgary medical student honoured with posthumous degree after death1:581 day ago -
Alberta businesses face economic anxiety over separation talks2:071 day ago -
Canadian police report massive jump in online child sexual exploitation1:441 day ago -
Conservatives want to make it easier to mail alcohol between provinces1:511 day ago
U.S. News
-
Titanic-themed statue depicting Trump and Epstein appears on National Mall0:5011 hours ago -
Most Americans oppose tariffs on Canadian goods, poll finds0:5311 hours ago -
Eby meets with U.S. ambassador to Canada2:0913 hours ago -
Trump administration keeps world guessing on Iran war objective2:132 days ago -
2 men charged with terrorism after bomb thrown near NY Mayor Mamdani’s home3:152 days ago -
Man who killed 3 Utah women said ‘it had to be done’: police1:303 days ago -
Leaders gather for Trump’s Shield of Americas summit2:044 days ago -
Could U.S. be drawn into another lengthy war in the Middle East?1:554 days ago -
New Epstein files contain unverified allegations about Trump2:195 days ago -
Pentagon labels Anthropic a ‘supply chain risk’0:426 days ago
Advertisement
World
-
Trump says there’s ‘practically nothing left to target’ in Iran, war will end ‘soon’1:476 hours ago -
Iranian protester’s daring video condemning regime was ‘price of freedom’2:306 hours ago -
Canada’s role in historic emergency oil reserve release1:536 hours ago -
U.S. reportedly responsible for deadly strike on Iran school1:596 hours ago -
Iran war: Ships struck in Strait of Hormuz, oil reserves tapped2:086 hours ago -
Business Matters: Iran warns oil prices could surge to $200 a barrel as war stretches on2:3813 hours ago -
Iran’s new supreme leader expected to continue hardline theocracy2:4713 hours ago -
U.S. keeps sending contradictory, mixed signals on Iran war1:571 day ago -
U.S. launches ‘most intense day’ of strikes on Iran2:0213 hours ago -
Local plea for Iranian democracy1:481 day ago
Politics
-
Global News Hour at 6 Edmonton: March 1113:375 hours ago -
Global News at 6 Lethbridge: March 1111:595 hours ago -
Global News Hour at 6 Calgary: March 1119:075 hours ago -
Trump says there’s ‘practically nothing left to target’ in Iran, war will end ‘soon’1:476 hours ago -
Iranian protester’s daring video condemning regime was ‘price of freedom’2:306 hours ago -
Canada’s role in historic emergency oil reserve release1:536 hours ago -
U.S. reportedly responsible for deadly strike on Iran school1:596 hours ago -
Iran war: Ships struck in Strait of Hormuz, oil reserves tapped2:086 hours ago -
NDP floor-crosser brings Carney’s Liberals to brink of majority3:086 hours ago -
Trump says he has ‘much better blood’ because his uncle was MIT professor for 41 years1:146 hours ago
Health and Wellness
-
Canadian Cancer Society recommends to lower colon cancer screening age to 451:4511 hours ago -
Health Matters: Study finds more adults being prescribed ADHD medication4:1913 hours ago -
Health Matters: Toronto Public Health confirms different variant of Mpox detected2:2313 hours ago -
Long-term care realities after the COVID-19 pandemic5:2013 hours ago -
‘Left in limbo’: Study links Canada’s long medical waits to billions in lost wages1:4913 hours ago -
Lip filler vs Botox vs what you can do at home: What’s the best option for your lips?5:412 days ago -
ADHD prescriptions for Ontario adults doubled since pandemic, study shows1:482 days ago -
How daylight saving time affects your body4:336 days ago -
Estrogen patch shortage1:596 days ago
Advertisement
Investigative News
-
Questions about how Tumbler Ridge shooter had access to guns2:304 weeks ago -
Deportation hearing for suspected high-ranking Iranian official living in Canada held behind closed doors0:451 month ago -
Vaccine-injured Canadians push for extension to claim deadline3:031 month ago -
Battling extortion violence in Surrey7:131 month ago -
Fighting the addictions crisis in northern Manitoba’s Nisichawayasihk Cree Nation5:023 months ago -
‘They can shoot me’: Fear-stricken Ontario family speaks after Bishnoi gang violence in Canada2:513 months ago -
Government responds to allegations of widespread fraud at Social Development and Poverty Reduction ministry3:303 months ago -
Ontario’s landfill crisis: The cost of inaction2:534 months ago -
Wiretap evidence sheds light on Nijjar murder2:264 months ago -
Russian snipers using Canadian rifles in Ukraine despite sanctions2:384 months ago
News Bloopers
-
‘Amoosing’ cow leaves Global News Morning crew in stitches1:593 months ago -
‘Can’t use that on TV’: Watch a Global News reporter jump from the highest bungee jump in Canada0:3711 months ago -
Black bear in tree has rough landing after being tranquilized at Halifax-area park0:4918 months ago -
Edmonton, B.C. morning show hosts settle NHL playoff bet3:0522 months ago -
‘You can’t make this stuff up:’ Loud clap of thunder interrupts live TV segment at pivotal moment0:2529 months ago -
Fun times? Global News personalities help clear snow in search of ‘fun’ story2:0040 months ago -
‘Buzzworthy moment’: Colin D’Mello recaps Doug Ford accidentally swallowing a bee1:5743 months ago -
‘Did you just call me daddy?’: Morning show hosts can’t hold back laughter after on-air mixup1:1543 months ago -
B.C. dad hoping to see his cloud photo on TV get his wish following viral TikTok campaign2:1247 months ago -
Bloopers: Phil Darlington slips, slides and falls in these Our Winter City outtakes1:3841 months ago