OhioとWisconsinで検便と下水道のウンコチェックと言う名の踏み絵で隠れ新型コロナサマナをあぶり出し

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EXCLUSIVE: Scientists launch manhunt for 'longest ever' Covid patient in Ohio who has been infected for two YEARS — as they warn patient's virus is so mutated it could spark 'concerning' outbreak

• An infected person in Ohio has been carrying a 'cryptic' strain of Covid years
• Researchers have found rare strain in Columbus and Washington Court House 
• READ MORE: One-fifth of 'long Covid' sufferers have not returned to work
• Are you or someone you know the Ohio person carrying Covid? Email: Mansur.Shaheen@mailonline.com

By Mansur Shaheen Deputy Health Editor For Dailymail.Com

Updated: 11:19 EDT, 26 April 2023

Scientists are trying to track down an Ohio resident who they believe is the longest-standing Covid patient ever, DailyMail.com can reveal.

The patient - thought to live in the Columbus area - is carrying a highly mutated version of the virus that is 'unlike anything' experts have seen.

The virus has been detected through wastewater sampling and traced back to early 2021. It is being repeatedly picked up along a 40-mile area, signaling that one person is carrying and shedding it through their stool.

Dr Marc Johnson, a microbiologist at the University of Missouri, warned the mutations the strain has would be serious enough to make it a 'variant of concern' if it began circulating in the population.

The man's Covid strain has evolved significantly differently than existing strains such as the Omicron and Delta variants that the population is familiar with. Pictured: A viral 'tree' the shows how different versions of Covid have evolved. Clustered in the center (blue arrow) are familiar variants that have circulated across the world. Within these strains, there are thousands, if not millions, of mutations differentiating them. The unknown Ohio person's strain (red line) has mutated totally separately, though. It's viral makeup is greatly different than that of other versions of the virus, and its evolutionary chain is linear — without thousands of branching paths. This indicates that the strain is only circulating in a single person.

A person in Ohio has been infected with Covid for over two years. Researchers found that they regularly commute from the small city of Washington Court House around 40 miles northeast to Columbus, Ohio. It is likely they live in Washington and work or go to school in Columbus

Dr Johnson believes the strain is being shed by the same person who regularly  commutes between Columbus and Washington Court House. 

The scientist is unsure whether the person is contagious or how they have managed to stay infected so long.

Patients who harbor viruses for exceptionally long periods of time often have weakened immune systems, which means their body struggles to clear the virus. Many scientists believe the Alpha, Delta and Omicron variants all emerged this way.

Dr Johnson is, however, convinced the patient is healthy and may travel for work or school, but he could not rule out a chronically ill person who commutes for hospital care. His team cannot say for certain that it is just one patient, either. 

The Missouri team has been analyzing Covid samples from sewage across the US in search of 'cryptic' Covid strains — new variants of the virus that have emerged with unknown origins.

The technique was used as a tool throughout the pandemic. Because the virus shows up in stool before someone suffers symptoms, wastewater data could help detect where outbreaks were going to emerge days in advance.

'We reverse analyze [wastewater] to see if anything in there that doesn't match any lineages,' Dr Johnson told DailyMail.com. 

'Very early on there was this [sample] that was different than anything we had seen,' he continued.

Late last year, his team began to scan wastewater data from Ohio.  He found the virus in Columbus, the state's largest city of nearly 1million, and in Washington Court House, a small city of just 15,000 just southwest.

This same lineage has not been detected anywhere else to his knowledge. This specific pattern likely means the person lives in Washington Court House and commutes to Columbus.

It could be for work, but the patient could also be a student, as Columbus is home to Ohio State University — which has more than 66,000 students. 

It is unclear how the person has harbored the virus for so long, but it is likely the virus has mutated within him to cause little complications.

The longest confirmed Covid case was logged by British doctors in April of last year when they confirmed a patient had been infected for 505 days — nearly a year and a half.

Overall, there are likely only a few thousand people that meet these guidelines, a relatively small group to be sifted through. 

This strain has mutated within this person over time. It has mutated to such a degree that it likely carries traits greatly different from any existing strain — meaning it poses a danger if it spreads.

'If this was circulating, it would immediately be declared a variant of concern,' Dr Johnson said.

However, the virus has likely mutated within this person to the extent that it is not fit to spread.

Instead, the virus has managed to adjust itself in a way that it can live within its host for a long period of time while going relatively undetected. 

It is likely a version of the Alpha or Wuhan strain that has significantly mutated within his body.

The virus has managed to hide in the person's body to replicate infinitely without the immune system targeting it. 

This can occur when the virus reaches 'immuno-privileged sites' in the body, where the immune system is unlikely to target. These can include the eyes, brain and fertility organs like the testes.

But while unlikely, it could be possible that the virus gains a few mutations necessary for it to begin to spread in the population. 

The patient is also likely asymptomatic or potentially experiencing symptoms similar to a bowel condition like Chron's disease — where sufferers experience cramping and diarrhea. 

'There is a good chance they do not know they are affected,' he continued.

Dr Johnson hopes to find this patient to first get them medical attention but also to gather samples he can use to learn more about the cryptic strain.

His team has been able to track down the holders of cryptic Covid lineages in the past.

In Spring 2022, Dr Johnson found a cryptic strain in Wisconsin. The afflicted person was shedding viral load at an exorbitant rate.

His team tested water in manholes in the area, and managed to track down where the load was coming from.

In late Summer 2022, they linked the strain to a toilet at a specific building, which employed many people who were coming to work each day. One of those employees is carrying the cryptic strain, Dr Johnson believes. 

The business has agreed to allow Dr Johnson to collect stool samples from some employees to determine which one is carrying the strain.  

The typical Covid case lasts for only a few days — and the maximum time someone should expect to be sick is two weeks.

However, many people have experienced prolonged symptoms after Covid infection — some being diagnosed with the mysterious condition 'long Covid'.

Dr Johnson fears that in some of these cases, a person is continuing to feel these symptoms because they are actually just suffering a continued infection. 

https://www.dailymail.co.uk/health/article-12012763/Scientists-launch-manhunt-longest-Covid-patient-Ohio.html

In Spring 2022, Dr Johnson found a cryptic strain in Wisconsin. The afflicted person was shedding viral load at an exorbitant rate.

His team tested water in manholes in the area, and managed to track down where the load was coming from.

2023年4月12日水曜日

米国国内で鳥インフルエンザウイルスの機能獲得実験をやって事故を起こした神戸出身の河岡義裕教授@日本学術会議

 

Lab-created bird flu virus accident shows lax oversight of risky 'gain of function' research

The story of how the H5N1 viruses came to be created – and the response to a 2019 safety breach – raises uncomfortable questions about the tremendous trust the world is placing in research labs.

'Gain of function' research created controversial flu viruses

And yet in late 2011 the world learned that two scientific teams – one in Wisconsin, led by virologist Yoshihiro Kawaoka, and another in the Netherlands, led by virologist Ron Fouchier – had potentially pushed the virus in that direction. Each of these labs had created H5N1 viruses that had gained the ability to spread through the air between ferrets, the animal model used to study how flu viruses might behave in humans.

The ultimate goal of this work was to help protect the world from future pandemics, and the research was supported with words and funding by two of the most prominent scientists in the United States: Dr. Francis S. Collins, director of the National Institutes of Health, and Dr. Anthony Fauci, director of the NIH’s National Institute of Allergy and Infectious Diseases.

Kawaoka contended it would be “irresponsible not to study” how the virus might evolve in nature. “Some people have argued that the risks of such studies – misuse and accidental release, for example – outweigh the benefits. I counter that H5N1 viruses circulating in nature already pose a threat,” he said at the time.

'Miscommunication' over quarantine alarmed NIH a decade ago

In 2013, six years before the 2019 safety incident with the ferret experiment at Kawaoka’s lab in Wisconsin, another member of his research team accidentally pierced their finger with a needle that had an engineered H5N1 virus on it.

It was a moment of poor judgment, human error around 6:30 p.m. Nov. 16, 2013, that set off a series of emergency calls that would eventually raise concerns in the nation’s capital.

An expert at the Centers for Disease Control and Prevention told officials at Wisconsin’s state health department that while the likelihood the scientist would develop symptoms of H5N1 was “low,” the needlestick “should be considered a serious exposure” and treated aggressively. The chief medical officer at the Wisconsin Department of Health Services told the university that the researcher would need to quarantine for seven days and take a treatment-level dose of Tamiflu twice a day for 10 days.

https://tokumei10.blogspot.com/2023/04/blog-post_12.html

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