News

Can mixing and matching COVID-19 vaccines fix Australia’s rollout problem?

Published

5 years ago

June 3, 2021

Mixing and matching COVID-19 vaccines is gaining momentum.

As countries around the world continue to rollout their COVID-19 vaccine programs, some nations have been slowed by supply disruptions or vaccine hesitancy. But experts believe mixing and matching COVID-19 vaccines could be the solution.

Dr John Hart is a medical epidemiologist at the Murdoch Children’s Research Institute. He said people can receive the AstraZeneca vaccine as the first dose, then Pfizer or Moderna as the second dose.

“Many countries around the world, like Australia, have recommended that people in younger age groups don’t receive the AstraZeneca vaccine.

“There’s a study from Spain where people received their first dose of AstraZeneca and then receiving a second dose of Pfizer.

It appears that these people have a stronger immune response than if they received two doses of the AstraZeneca,” he explained.

Germany, France, Sweden, Denmark and Norway are among the countries that are advising mixed vaccination schedules.

“They produce more antibodies and we think this would be more effective at preventing disease,” Dr Hart said.

Is it safe?

A UK study was published last month. It followed 830 adults who received the AstraZeneca or Pfizer vaccines first, then the other at a later date.

The research found that people with mixed doses were likely to develop some mild symptoms. However, the reactions did not last long and no other concerns were raised.

#ICYMI: New data show that both the Pfizer-BioNTech and Oxford-AstraZeneca #vaccines are highly effective in reducing #COVID19 infections among people aged 70 and over.

Read more about our study here: https://t.co/QLgxqYAYWk

— Public Health England (@PHE_uk) March 2, 2021

“Every country in the world wants these vaccines and there’s going to be a limited supply for some time,” Dr Hart said.

“If we’re able to give one vaccine thats readily available and one that’s available later because of disruptions to supply chain, then I think that could be beneficial.”

But vaccine schedules may require modification in the near future, as booster shots rollout. However, researchers believe this is typical for vaccine programs as new evidence comes to light.

Last month, the European Union secured a record number of Pfizer-BioTech vaccines. But the World Health Organisation has criticised the global community for vaccine inequity.

Related Topics:covid covid19 vaccinated vaccination VACCINE

Up Next

The global vaccine push set to speed up rollouts

Don't Miss

Two journalists jailed in Myanmar

Costa Haritos

Costa is a news producer at ticker NEWS. He has previously worked as a regional journalist at the Southern Highlands Express newspaper. He also has several years' experience in the fire and emergency services sector, where he has worked with researchers, policymakers and local communities. He has also worked at the Seven Network during their Olympic Games coverage and in the ABC Melbourne newsroom. He also holds a Bachelor of Arts (Professional), with expertise in journalism, politics and international relations. His other interests include colonial legacies in the Pacific, counter-terrorism, aviation and travel.

Click to comment

Crypto

Crypto crash alert: Bitcoin and Ethereum plunge amid market turmoil

Crypto market downturn hits Bitcoin and Ethereum; insights on volatility, recovery, and long-term targets from Oz Sultan.

Published

17 hours ago

December 2, 2025

Harvey Vargas

Crypto market downturn hits Bitcoin and Ethereum; insights on volatility, recovery, and long-term targets from Oz Sultan.

The crypto market is facing a sharp downturn as Bitcoin and Ethereum see significant losses, sparking concerns among investors. Analysts warn of continued volatility but remain cautiously optimistic about a rebound by 2026–2027.

We sit down with Oz Sultan from Sultan Interactive Group to break down what’s driving this market shake-up. From $608 million in liquidations to the impact on overall market sentiment, we explore what this means for both short-term traders and long-term investors.

Get insights on Bitcoin’s long-term targets, potential recovery trends, and what historical data suggests for the future of cryptocurrency.

Subscribe to never miss an episode of Ticker – https://www.youtube.com/@weareticker

News

Airbus hit by new A320 fuselage panel defect triggering share price drop

Airbus faces manufacturing issues with A320 fuselage panels, impacting shares but confirming safety for in-service aircraft.

Published

18 hours ago

December 2, 2025

Harvey Vargas

Airbus faces manufacturing issues with A320 fuselage panels, impacting shares but confirming safety for in-service aircraft.

Airbus is confronting a fresh manufacturing issue after discovering a quality defect in several dozen fuselage panels used on A320-family jets. The revelation sparked investor concern, with shares falling by up to 10% as the news broke.

While the newly identified flaw has caused some delivery delays, Airbus confirms that aircraft already in service are safe and unaffected. The defect is limited to a specific batch of panels, and all new production now meets required standards.

The company has apologised for the disruption and says it is working closely with suppliers to prevent a repeat of the issue.

Subscribe to never miss an episode of Ticker – https://www.youtube.com/@weareticker

#Airbus #A320neo #AviationIndustry #Manufacturing #AviationSafety #StockMarket #Aerospace #TickerNews

News

Bitcoin tanks as markets turn risk-off and tech stocks slide

Bitcoin drops over 7% to $84,555, its lowest in a week, amid waning investor confidence and bearish market pressures.

Published

19 hours ago

December 2, 2025

Harvey Vargas

Bitcoin drops over 7% to $84,555, its lowest in a week, amid waning investor confidence and bearish market pressures.

Bitcoin has suffered a sharp decline, falling more than 7% and slipping to $84,555 — its lowest point in over a week. After a brutal November where BTC shed more than $18,000, its biggest dollar drop since mid-2021, investor confidence is wavering. Analysts say multiple pressures, including negative ratings for major stablecoins, are amplifying bearish sentiment across the market.

Subscribe to never miss an episode of Ticker – https://www.youtube.com/@weareticker

#Bitcoin #CryptoNews #Markets #TechStocks #Investing #Blockchain #FinancialNews #TickerNews