The Latest: WHO chief scientist sees no herd immunity yet
LONDON — The chief scientist at the World Health Organization estimates that about 50% to 60% of the population will need to be immune to the coronavirus for there to be any protective “herd immunity” effect.
Herd immunity is usually achieved through vaccination and occurs when most of a population is immune to a disease, blocking its continued spread.
During a social media event on Friday, Dr. Soumya Swaminathan said that studies done from some countries hit hard by COVID-19 show that about 5% to 10% of people now have antibodies, though in some countries, it has been as high as 20%.
She says: “As there are waves of this infection going through countries, people are going to develop antibodies and those people will hopefully be immune for sometime so they will also act as barriers and brakes to the spread.”
Other experts have estimated that as much as 70% to 80% of the population need to have antibodies before there is any herd immunity effect.
In the pandemic’s earlier stages, countries including Britain proposed achieving herd immunity as an outbreak response strategy. But Swaminathan pointed out that achieving this effect with a vaccine is much safer than letting the virus rip through the population.
She says that to achieve herd immunity through natural infection, you need to have several waves and you will see the morbidity and mortality that we see now.
HERE’S WHAT YOU NEED TO KNOW ABOUT THE VIRUS OUTBREAK:
— The global march of face masks: A mirror on humanity
— AP-NORC poll: 3 in 4 Americans back requiring wearing masks
— Pepcid as a virus remedy? Trump admin’s $21M gamble fizzled
— China’s ruling Communist Party says a former chairman of a state-owned real estate company who publicly criticized President Xi Jinping’s handling of the coronavirus pandemic has been expelled from the party and will be prosecuted on corruption charges.
— Even before the new coronavirus hit, Argentina’s health care workers were struggling, most of them working more than 12 hours a day at multiple jobs to make ends meet amid the country’s overheated inflation.
— South Africa is seeing a “huge discrepancy” between confirmed COVID-19 deaths and an unusually high number of excess deaths from natural causes, while Africa’s top health official says the coronavirus is spreading there “like wildfire.”
Follow AP’s pandemic coverage at http://apnews.com/VirusOutbreak and https://apnews.com/UnderstandingtheOutbreak
HERE’S WHAT ELSE IS HAPPENING:
LONDON — New rules on wearing masks in England have come into force, with people going to shops, banks and supermarkets now required to wear face coverings.
Police can hand out fines of 100 pounds ($127) if people refuse, but authorities are hoping that peer pressure will prompt compliance.
The move had been controversial, with the government offering mixed signals on the matter for weeks before coming up with a policy.
Guidance was issued Thursday, which says people should “assume” it is standard to wear a face covering when visiting a hospital, care home or community health care setting.
John Apter, the national chairman of the Police Federation of England and Wales, says officers will be available as a last resort but that he hopes the public “will continue to do the right thing and wear face coverings in stores to help protect fellow citizens to minimize the spread of the virus.”
The are some exceptions to the new rules, with venues like restaurants, pubs, gyms and hairdressers exempt.
Other exemptions to face coverings include children under 11, people with breathing problems and people who can’t wear a mask because of a disability.
BERLIN — The German government says a new update to the country’s coronavirus tracing app has addressed a problem on many smartphones that reportedly resulted in some users receiving infection warnings late or not at all.
Germany’s Corona-Warn-App has been downloaded more than 15.5 million times since its launch last month. If someone using it tests positive for COVID-19, they can inform others who were in close proximity for at least 15 minutes that they, too, might be infected.
On Thursday evening, the Bild newspaper reported that automatic warning notifications didn’t work properly on some Android phones in the first five weeks because the app’s background update function switched off automatically to save power when the app wasn’t open.
The Health Ministry said Friday that the latest version of the app allows users to activate the background update function more easily.
PHNOM PENH, Cambodia — Cambodia’s Health Ministry announced Friday it has confirmed four new cases of the coronavirus, all members of a Cambodian military force that had been stationed in the African nation of Mali on a peacekeeping mission for the United Nations.
The three men and a woman were members of a team that had worked on land mine clearance. They were among 80 members who arrived back in Cambodia on July 10. The four were confirmed on Thursday to be infected.
Cambodia since 2006 has sent more than 6,000 soldiers to participate in demining and engineering work in U.N. peacekeeping operations in the Middle East and Africa. Officials have explained the deployments are partly in gratitude for a massive 1992-1993 U.N. peacekeeping operation in Cambodia that oversaw a transition from civil war to political stability.
Cambodia has confirmed 202 cases of coronavirus with no deaths. There have been no recent cases of local transmission. All new cases have involved arrivals from abroad, virtually all of them Cambodians but also including two U.S. diplomats.
NEW DELHI — India has surpassed 30,000 deaths and its COVID-19 fatalities are now sixth in the world.
The Health Ministry on Friday added 740 deaths due to COVID-19 in the last 24 hours, increasing the toll to 30,601. The total now exceeds France’s toll, according to a Johns Hopkins University tally.
India also registered a record 49,310 new cases, taking the country’s tally to 1,287,945, third most in the world behind the United States and Brazil.
More than 60% have recovered.
As cases surge, the Home Ministry advised all government offices, states and officials to avoid congregations for Aug. 15 Independence Day celebrations.
SEOUL, South Korea — South Korea will allow baseball fans to return to the stands beginning Sunday as health authorities outlined a phased process to bring back spectators in professional sports amid the COVID-19 epidemic.
Senior Health Ministry official Yoon Tae-ho also said fans will be allowed at professional soccer games starting on Aug. 1. However, professional golf tournaments will continue without galleries at least until late August, he said.
Both baseball and soccer teams will be initially allowed to sell only 10% of seats for each game and fans must register with smartphone QR codes for contract-tracing purposes if necessary. Fans will be banned from eating food and drinking beer, and discouraged from excessive shouting, singing and cheering during the game.
South Korea’s baseball and soccer leagues returned to action in May without fans in the stands. Seats have been covered with cheering banners, dolls or pictures of fans as teams tried to mimic a festive atmosphere.
South Korea reported 41 new virus cases Friday, 28 of them local infections and 13 from overseas. South Korea has been reporting roughly 20-60 cases every day since it eased rigid social distancing rules in early May.
MELBOURNE, Australia — The premier of Australia’s COVID-19 hot spot, Victoria state, says the military will be used to bolster contact-tracing efforts.
Premier Daniel Andrews said Friday that if someone who is a newly diagnosed coronavirus case does not answer after being telephoned twice, soldiers will accompany a health official to the infected person’s home for a contact-tracing interview on the doorstep.
Anyone who is not at home will likely be fined for failing to home quarantine while awaiting a negative test result. Previously, failure to contact an infected person by phone was not followed up with a house call.
Australia’s Prime Minister Scott Morrison said all states and territories had eradicated community transmission except for the most populous, New South Wales and Victoria states.
“There will always be cases that come because Australia has not completely shut itself off from the world. To do so would be reckless,” Morrison said.
Victoria recorded 300 new cases on Friday and New South Wales seven, both declines from the previous day.
BEIJING — Chinese officials have reported two confirmed coronavirus cases in a northeastern province as China continues to see infection clusters develop even though it has largely contained the virus in most of the country.
Authorities in Liaoning province have closed theaters, night clubs and indoor tourist attractions trying to stem further infections.
The Liaoning infections mark China’s latest cluster after one in the far northwestern region of Xinjiang earlier this month. That outbreak, focused on the regional capital of Urumqi, has infected dozens of people and officials have curbed travel and ordered widespread testing.
Elsewhere, China has largely contained the virus, with major cities such as Beijing and Shanghai opening up to increased economic activity and social interaction.