London Daily

Focus on the big picture.
Friday, Oct 24, 2025

Lockdowns can't end until Covid-19 vaccine found, study says

Lockdowns can't end until Covid-19 vaccine found, study says

China’s restrictions have brought the first wave to an end but the danger of a second is very real.
Countries wanting to end the lockdown and allow people to move about and work again will have to monitor closely for new infections and adjust the controls they have in place until there is a vaccine against Covid-19, according to a new study based on the Chinese experience.

China’s aggressive controls over daily life have brought the first wave of Covid-19 to an end, say researchers based in Hong Kong. But the danger of a second wave is very real.

“While these control measures appear to have reduced the number of infections to very low levels, without herd immunity against Covid-19, cases could easily resurge as businesses, factory operations, and schools gradually resume and increase social mixing, particularly given the increasing risk of imported cases from overseas as Covid-19 continues to spread globally,” says Prof Joseph T Wu from the University of Hong Kong, who co-led the research.

China has pushed the reproductive number – the number of people on average that one person with Covid-19 will infect – from two or three to below one, where the epidemic is effectively shrinking.

But, the researchers warn, if normal life is allowed to resume too quickly and the lifting of controls is too extensive, the reproductive number will rise again. Governments will need to keep a close watch on what is happening, they say.

“Although control policies such as physical distancing and behavioural change are likely to be maintained for some time, proactively striking a balance between resuming economic activities and keeping the reproductive number below one is likely to be the best strategy until effective vaccines become widely available,” said Wu.

The paper published in the Lancet medical journal is based on modeling of the epidemic in China. It shows that the death rate in mainland China was far lower, at less than 1%, than in Hubei province where the epidemic began, which had a death rate of nearly 6%. It also varied according to the economic prosperity of each province, which was related to the healthcare available.

“Even in the most prosperous and well-resourced megacities like Beijing and Shanghai, healthcare resources are finite, and services will struggle with a sudden increase in demand”, says senior author Prof Gabriel M Leung from the University of Hong Kong. “Our findings highlight the importance of ensuring that local healthcare systems have adequate staffing and resources to minimise Covid-related deaths.”

Their analysis uses local Health Commission data of confirmed Covid-19 cases between mid-January and 29 February in four cities – Beijing, Shanghai, Shenzhen, Wenzhou and the ten provinces outside Hubei with the highest numbers of cases. It leads them to urge that controls should be relaxed only gradually.
Newsletter

Related Articles

0:00
0:00
Close
Microsoft AI CEO: ‘We’re making an AI that you can trust your kids to use’ — but can Microsoft rebuild its own trust before fixing the industry’s?
China and Russia Deploy Seductive Espionage Networks to Infiltrate U.S. Tech Sector
Apple’s ‘iPhone Air’ Collapses After One Month — Another Major Misstep for the Tech Giant
Graham Potter Begins New Chapter as Sweden Head Coach on Short-Term Deal
Ecuadorian President Daniel Noboa Alleges Poison Plot via Chocolate and Jam
Lakestar to Halt External Fundraising as Investor in Revolut and Spotify
U.S. Innovation Ranking Under Scrutiny as China Leads Output Outputs but Ranks 10th
Three Men Arrested in London on Suspicion of Spying for Russia
Porsche Reverses EV Strategy as New CEO Bets on Petrol and Hybrids
Singapore’s Prime Minister Warns of ‘Messy’ Transition to Post-American Global Order
Andreessen Horowitz Sets Sights on Ten-Billion-Dollar Fund for Tech Surge
US Administration Under President Donald Trump Reportedly Lifts Ban on Ukraine’s Use of Storm Shadow Missiles Against Russia
‘Frightening’ First Night in Prison for Sarkozy: Inmates Riot and Shout ‘Little Nicolas’
White House Announces No Imminent Summit Between Trump and Putin
US and Qatar Warn EU of Trade and Energy Risks from Tough Climate Regulation
Apple Challenges EU Digital Markets Act Crackdown in Landmark Court Battle
Nicolas Sarkozy begins five-year prison term at La Santé in Paris
Japan stocks surge to record as Sanae Takaichi becomes Prime Minister
This Is How the 'Heist of the Century' Was Carried Out at the Louvre in Seven Minutes: France Humiliated as Crown with 2,000 Diamonds Vanishes
China Warns UK of ‘Consequences’ After Delay to London Embassy Approval
France’s Wealthy Shift Billions to Luxembourg and Switzerland Amid Tax and Political Turmoil
"Sniper Position": Observation Post Targeting 'Air Force One' Found Before Trump’s Arrival in Florida
Shouting Match at the White House: 'Trump Cursed, Threw Maps, and Told Zelensky – "Putin Will Destroy You"'
Windows’ Own ‘Siri’ Has Arrived: You Can Now Talk to Your Computer
Thailand and Singapore Investigate Cambodian-Based Prince Group as U.S. and U.K. Sanctions Unfold
‘No Kings’ Protests Inflate Numbers — But History Shows Nations Collapse Without Strong Executive Power
Chinese Tech Giants Halt Stablecoin Launches After Beijing’s Regulatory Intervention
Manhattan Jury Holds BNP Paribas Liable for Enabling Sudanese Government Abuses
Trump Orders Immediate Release of Former Congressman George Santos After Commuting Prison Sentence
S&P Downgrades France’s Credit Rating, Citing Soaring Debt and Political Instability
Ofcom Rules BBC’s Gaza Documentary ‘Materially Misleading’ Over Narrator’s Hamas Ties
Diane Keaton’s Cause of Death Revealed as Pneumonia, Family Confirms
Former Lostprophets Frontman Ian Watkins Stabbed to Death in British Prison
"The Tsunami Is Coming, and It’s Massive": The World’s Richest Man Unveils a New AI Vision
Outsider, Heroine, Trailblazer: Diane Keaton Was Always a Little Strange — and Forever One of a Kind
Dramatic Development in the Death of 'Mango' Founder: Billionaire's Son Suspected of Murder
Two Years of Darkness: The Harrowing Testimonies of Israeli Hostages Emerging From Gaza Captivity
EU Moves to Use Frozen Russian Assets to Buy U.S. Weapons for Ukraine
Europe Emerges as the Biggest Casualty in U.S.-China Rare Earth Rivalry
HSBC Confronts Strategic Crossroads as NAB Seeks Only Retail Arm in Australia Exit
U.S. Chamber Sues Trump Over $100,000 H-1B Visa Fee
Shenzhen Expo Spotlights China’s Quantum Step in Semiconductor Self-Reliance
China Accelerates to the Forefront in Global Nuclear Fusion Race
Yachts, Private Jets, and a Picasso Painting: Exposed as 'One of the Largest Frauds in History'
Australia’s Wedgetail Spies Aid NATO Response as Russian MiGs Breach Estonian Airspace
McGowan Urges Chalmers to Cut Spending Over Tax Hike to Close $20 Billion Budget Gap
Victoria Orders Review of Transgender Prison Placement Amid Safety Concerns for Female Inmates
U.S. Treasury Mobilises New $20 Billion Debt Facility to Stabilise Argentina
French Business Leaders Decry Budget as Macron’s Pro-Enterprise Promise Undermined
Trump Claims Modi Pledged India Would End Russian Oil Imports Amid U.S. Tariff Pressure
×