China Returns to Its Strict Covid Restrictions to Fight a New Outbreak

Foreign businesses worry that tough quarantines and restrictions could persist into next year as Beijing struggles with variants and questions about its vaccines.

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BEIJING — Neighborhoods under strict lockdown. Thousands quarantined. Millions tested in mere days. Overseas arrivals locked up for weeks and sometimes months.

China has followed variations of that formula for dealing with the coronavirus for more than a year — and a new outbreak suggests that they could be part of Chinese life for some time to come.

China appeared to get the coronavirus under control nearly a year ago. But hundreds of millions of Chinese people remain unvaccinated. New variants of the coronavirus have appeared, and questions remain about whether China’s self-made vaccines can stop them.

The latest cases have been found in Guangzhou, capital of the southern province of Guangdong. The authorities have blamed the Delta variant, which has caused widespread loss of life in India.

The city tested practically its entire population of 18.7 million between Sunday and Tuesday, some of them for the second time. It has also put neighborhoods with a total of more than 180,000 residents into total lockdowns, with practically no one allowed out except for medical testing.

The early infections appear to have jumped from person to person at a cluster of eateries. Each infected person has infected more other people than in any previous outbreak that China has confronted, Zhang Zhoubin, deputy director of the Guangzhou Center for Disease Control, said at a news conference.

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Lines of residents getting tested in Guangzhou last month. Test facilities in the city have been operating around the clock.Credit…Associated Press

“The epidemic faced by Guangzhou this time is an unprecedented opponent, and it requires more resolute and decisive measures to deal with it,” he said.

Test facilities in Guangzhou have been operating around the clock. Lines are long. Residents wake early to try to beat the rush, but still find delays.

Mandy Li, a longtime resident of the city’s Liwan District, where most of the infections have occurred, said she set her alarm clock for 3:30 a.m. She still had to wait an hour.

“In the queue, there was a family of three,” she said. “Some woke their kids to line up, and some had strollers. But everyone was cooperative and quiet, as we know some volunteers and medical workers worked very hard and they’ve been there all this time without rest.”

China’s approach has evolved since the coronavirus first emerged, when Beijing initially put harsh restrictions on hundreds of millions of people. Today its lockdowns are focused on neighborhoods rather than cities or provinces. China has made vaccination the centerpiece of its strategy.

Still, many of the core tenets remain for a huge and densely populated country: vast testing, strict limits on movement and intense scrutiny of arrivals from other countries.

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The empty Beijing Capital International Airport last month. China has demanded limits on international travelers, and long quarantines.Credit…Tingshu Wang/Reuters

Foreign businesses have worried that those limits on international travelers could snarl their plans. A European Union Chamber of Commerce survey released this week found that three-quarters of member companies said they had been adversely affected by travel restrictions, usually by hindering them from bringing in key engineers or executives.

Beijing has demanded that travelers from dozens of countries spend two weeks in employer-supervised quarantine even before flying to China. Once there, travelers must spend at least two weeks and sometimes three or longer in government-supervised quarantine, even if they are fully vaccinated. Rounds of tests can turn up a possibly false positive, leading to more tests and additional days or weeks in isolation.

A German national who flew into Shanghai last month said that he had been sent to a hospital isolation room for three days because he tested positive for antibodies, which he attributed to taking a second vaccine dose 16 days earlier.

Nurses took his blood twice a day and performed six throat swabs, four nasal swabs and two anal swabs daily, said the German, who insisted on anonymity to avoid offending the authorities. The hospital room had no towels, no toilet paper and no television, and the bed was a steel plate with a thin mat, he said.

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Doses of the Covid-19 vaccine developed by Sinovac being produced at a factory in Beijing last year. Most Chinese have not been fully vaccinated.Credit…Wang Zhao/Agence France-Presse — Getty Images

The German said that, after consistently testing negative for the virus, he was allowed to spend the remaining 11 days of isolation in a government-supervised quarantine center.

Many businesses expect that China may retain stringent travel restrictions through February, when Beijing will host the Winter Olympics, and possibly through autumn of next year, when the Chinese Communist Party will hold its party congress.

Many foreigners in China face a choice: If they leave to visit spouses, children and other family members elsewhere, they may be unable to re-enter the country later because of the pandemic restrictions.

“There is absolutely a growing fatigue for a lot of the foreigners who are here,” said Jacob Gunter, senior policy and communications manager at the European Union Chamber of Commerce in China.

At home, China’s leaders are pushing its people to get vaccinated. It has administered about 800 million doses by the government’s count, compared with 300 million administered in the United States. Yin Weidong, the chairman and chief executive of Sinovac Biotech, one of China’s main vaccine manufacturers, told state television last Friday that Chinese regulators had approved the emergency use of vaccines in children as young as 3.

Still, administering 800 million doses — almost all of the vaccines require two shots — means most of China’s 1.4 billion people have not been fully vaccinated. Some people remain hesitant to get the shots, and Chinese media outlets have used the Guangzhou outbreak to encourage skeptics to get inoculated.

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A nurse administering a Sinopharm vaccine in Ulaanbaatar, Mongolia, last month. Mongolia has had large numbers of infections despite vaccinating half of its population.Credit…Khasar Sandag for The New York Times

The spread of the virus has raised fresh questions about the effectiveness of China’s vaccines, particularly against variants. The Seychelles last month and now Mongolia in the past three weeks have both had large numbers of infections despite high vaccination rates. Both have used the Sinopharm vaccine from China, although the Seychelles also relied partly on AstraZeneca vaccines.

The Delta variant now circulating in Guangzhou has also shown the ability in other countries to infect some people who had already been vaccinated, a phenomenon known as vaccine escape. Research elsewhere has found that to be a particular problem for people who have received only a first injection of a two-jab vaccine and are then exposed to the Delta variant.

Researchers in Britain have found that receiving only the first of two shots of the Oxford-AstraZeneca or Pfizer-BioNTech vaccines may be only 30 percent effective in preventing infection with the Delta variant, said Raina MacIntyre, who heads the biosecurity program at the Kirby Institute of the University of New South Wales in Sydney, Australia.

After two doses, effectiveness appears to rise to 60 percent with the AstraZeneca vaccine and 88 percent with Pfizer-BioNTech. “With the degree of vaccine escape there is with the Delta variant, you really do need people to be fully vaccinated,” she said.

Mr. Yin, of Sinovac, told China’s state-run television on Saturday that a third shot of his company’s vaccine produces a tenfold increase in antibodies within a week. But Chinese vaccine manufacturers are not yet recommending a third dose.

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Distribution of goods at a compound under lockdown in Guangzhou last week.Credit…China Daily, via Reuters

“As far as China is concerned, in fact, completing the two-shot immunization is the most important task for all the public,” he said.

In the meantime, Guangzhou has tried to turn its virus setback into a showcase for local technologies. Officials there said they had used 31 driverless shuttle vans and trucks to send food and other critical supplies into locked down neighborhoods to avoid exposing delivery personnel.

By Tuesday, Guangdong Province had 157 people in hospital with the virus and was announcing about 10 new cases per day. The province and also Guangzhou itself have banned anyone since last weekend from leaving unless they have a valid reason and a negative nucleic acid test for the virus within the preceding 48 hours.

Unlike many places around the world, Guangzhou at least does not have to worry about running out of pandemic supplies: It is coincidentally a hub for manufacturing and exporting them. Chen Jianhua, chief economist of the Guangzhou Bureau of Industry and Information Technology, said at a news conference on Wednesday that the city’s daily production capacity was 91 million masks and seven million sets of coronavirus detection chemicals.

Albee Zhang contributed research.

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