CEOCambodiaNews wrote: ↑Wed Apr 22, 2020 4:12 pm Those patients all tested negative for the virus at some point after recovering, but then tested positive again, some up to 70 days later, the doctors said. Many have done so over 50-60 days.

Does this ever happen with previously known flu strains?

Coronavirus: Missouri becomes first state to sue China over 'an appalling campaign of deceit'

WASHINGTON – Missouri became the first state to sue the Chinese government, citing "an appalling campaign of deceit" related to the coronavirus pandemic.
The civil lawsuit was filed Tuesday in federal court by GOP state Attorney General Eric Schmitt, claiming Chinese officials are “responsible for the enormous death, suffering, and economic losses they inflicted on the world, including Missourians.”
“The Chinese government lied to the world about the danger and contagious nature of COVID-19, silenced whistleblowers, and did little to stop the spread of the disease,” said Schmitt who is seeking damages.“They must be held accountable for their actions.”

https://www.msn.com/en-gb/news/coronavi ... li=BBoPWjQ

April 22, 2020 / 9:38 AM / Updated an hour ago
Chinese city tightens coronavirus travel curbs in biggest outbreak

4 Min Read

BEIJING (Reuters) - A northeastern city of 10 million people, grappling with what is now China’s biggest coronavirus outbreak, further restricted inbound traffic on Wednesday to contain the spread of the highly contagious disease.

Harbin, the provincial capital of Heilongjiang and its biggest city, has banned entry to residential zones by non-locals and vehicles registered elsewhere, state media said. It had already ordered isolation for those arriving from outside China or key epidemic areas.

Heilongjiang has been in the forefront of China’s latest efforts to identify infected citizens arriving from Russia, with which it shares a border, to curb the spread of the virus.

Harbin said this month it was ordering 28 days of quarantine for all arrivals from abroad, with two nucleic acid tests and an antibody test for each. It also set 14-day lockdowns for residences where confirmed and asymptomatic cases are found.

PERSISTING CLUSTER
One persisting cluster in Harbin centred on an 87-year-old man surnamed Chen who had stayed at two hospitals since April 2, four days after dinner at home with his son’s friends, two of whom later tested positive.

By Tuesday, Chen had infected 78 people, with 55 confirmed, though 23 who tested positive have yet to show virus symptoms.

Those infected were mainly family members, hospital patients and their families, and doctors and nurses in direct or indirect contact, provincial health officials said.

Of seven new confirmed cases in Heilongjiang on Tuesday, four were patients who had stayed in the same ward as Chen, while three were healthcare workers at one hospital.

The virus that infected the cluster has travelled beyond the province, with health officials in neighbouring Liaoning reporting on April 16 a confirmed case whose father had stayed at the same hospital as Chen.

On Monday, the northern region of Inner Mongolia reported a confirmed case in an individual who had stayed at one of the Harbin hospitals at the same time as Chen and the Liaoning patient.
https://www.reuters.com/article/us-heal ... SKCN22409D

Germany Approves First Live Human Testing Trial of Potential COVID-19 Vaccine
22/04/20 19:51

BERLIN, April 22 (CNA) - Germany's vaccines regulator approved live human testing of a potential vaccine against COVID-19 developed by German biotech company BioNTech , the regulator said in a statement on Wednesday (Apr 22).

The trial, only the fourth worldwide of a preventive agent targeting the virus behind the global pandemic, will be conducted on 200 healthy people aged between 18 and 55 in the first stage, and on further people, including those at higher risk from the disease, in a second stage.

BioNTech said it was developing the vaccine candidate, named BNT162, together with its partner, pharma giant Pfizer.

Tests of the vaccine were also planned in the United States, once regulatory approval for testing on humans had been secured there.
http://en.freshnewsasia.com/index.php/e ... 03-43.html

^^ Proceed with caution, the journalistic source of the article is the British tabloid the Daily Mail, known for sensationalist reporting.
From the link above:
Why US outsourced bat virus research to Wuhan
by Christina Lin April 22, 2020
The US National Institutes of Health (NIH) funded bat-coronavirus research in the Wuhan Institute of Virology in China to the tune of US$3.7 million, a recent article in the British newspaper Daily Mail revealed.
https://www.dailymail.co.uk/news/articl ... caves.html

LOL, if it is true ^^^
that would reeeally twist some knickers

French researchers to test nicotine patches on coronavirus patients
Study – which stresses serious health risks of smoking – suggest substance in tobacco may lower risk of getting coronavirus
Kim Willsher in Paris
Wed 22 Apr 2020 14.58 BST

French researchers are planning to test nicotine patches on coronavirus patients and frontline health workers after a study suggested smokers may be much less at risk of contracting the virus.

The study at a major Paris hospital suggests a substance in tobacco – possibly nicotine – may be stopping patients who smoke from catching Covid-19. Clinical trials of nicotine patches are awaiting the approval of the country’s health authorities.

However, the researchers insisted they were not encouraging the population to take up smoking, which carries other potentially fatal health risks and kills 50% of those who take it up. While nicotine may protect those from the virus, smokers who have caught it often develop more serious symptoms because of the toxic effect of tobacco smoke on the lungs, they say.

The team at Pitié-Salpêtrière hospital questioned 480 patients who tested positive for the virus, 350 of whom were hospitalised while the rest with less serious symptoms were allowed home.

It found that of those admitted to hospital, whose median age was 65, only 4.4% were regular smokers. Among those released home, with a median age of 44, 5.3% smoked.

Taking into account the age and sex of the patients, the researchers discovered the number of smokers was much lower than that in the general population estimated by the French health authority Santé Publique France at about 40% for those aged 44-53 and between 8.8% and 11.3% for those aged 65-75.

The renowned French neurobiologist Jean-Pierre Changeux, who reviewed the study, suggested the nicotine might stop the virus from reaching cells in the body preventing its spread. Nicotine may also lessen the overreaction of the body’s immune system that has been found in the most severe cases of Covid-19 infection.

The findings are to be verified in a clinical study in which frontline health workers, hospital patients with the Covid-19 virus and those in intensive care will be given nicotine patches.

The results confirm a Chinese study published at the end of March in the New England Journal of Medicine that suggested only 12.6% of 1,000 people infected with the virus were smokers while the number of smokers in China is around 28%.

In France, figures from Paris hospitals showed that of 11,000 patients admitted to hospital with Covid-19, 8.5% were smokers. The total number of smokers in France is estimated at around 25.4%.

“Our cross-sectional study strongly suggests that those who smoke every day are much less likely to develop a symptomatic or severe infection with Sars-CoV-2 compared with the general population,” the Pitié-Salpêtrière report authors wrote.

“The effect is significant. It divides the risk by five for ambulatory patients and by four for those admitted to hospital. We rarely see this in medicine,” it added.
https://www.theguardian.com/world/2020/ ... oronavirus

hunter8 wrote: ↑Wed Apr 22, 2020 5:02 pm

CEOCambodiaNews wrote: ↑Wed Apr 22, 2020 4:12 pm Those patients all tested negative for the virus at some point after recovering, but then tested positive again, some up to 70 days later, the doctors said. Many have done so over 50-60 days.

Does this ever happen with previously known flu strains?

Yes.
But as Cv is so new, they do not know if this syndrome for Cv is reinfection, lingering dormant infection or faults in the testing.
Reinfection by many influenzas strains is quite common. Even the exact same strains. Often very soon after original infection.
One more thing that makes relying solely on herd immunity an even more a reckless gamble.