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Coronavirus reaches the US: Everything we know about the deadly virus – CNET

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A man in Wuhan, China wears a face mask.


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A never-before-seen virus, detected in the central Chinese city of Wuhan, has claimed nine lives and infected hundreds of Chinese citizens with a pneumonia-like illness, according to China’s National Health Commission. It was first reported to the World Health Organization on Dec. 31, 2019 and has been under investigation since. WHO indicates there are still many unknowns, but Chinese scientists have linked the disease to a family of viruses known as “coronaviruses,” the same family as the deadly SARS and MERS viruses.

Scientists are yet to fully understand how destructive the new virus, dubbed 2019-nCoV, might be. Researchers and investigators are just beginning to understand where it originated, how it is transmitted, how far it has spread and what symptoms patients present with.

As of Jan. 21, case numbers have skyrocketed to over 440 in China and abroad. Chinese authorities also confirmed health workers have been infected with virus, suggesting it has achieved human-to-human transmission. As a result, authorities are taking steps to guard against its spread and the WHO will convene an Emergency Committee to explore whether the virus constitutes a public health emergency on Wednesday, Jan. 22. Researchers believe the number of cases may be higher than current reports suggest, and three US airports have begun to screen incoming passengers for signs of illness, as have busy airports in Hong Kong, Singapore, South Korea and Malaysia.

Here’s everything we know about the mystery virus and steps you can take to reduce your risk of coronavirus 

What is a coronavirus?

Coronaviruses belong to a family of viruses known as Coronaviridae and look like spiked rings under an electron microscope. They are so named because of these spikes, which form a halo around their viral envelope.

Coronaviruses contain a strand of RNA within their envelope and cannot reproduce without getting inside living cells and hijacking the machinery found within. The spikes on their viral envelope help them bind to cells, which gives them a way in. It’s like blasting the door open with C4. Once inside they turn the cell into a virus factory, using its molecular conveyor belt to produce more viruses which are then shipped out. The virus progeny infect another cell and the cycle starts anew.

Typically, these types of viruses are found in animals ranging from livestock to household pets and wildlife such as bats. When they make the jump to humans they can cause fever, respiratory illness and inflammation in the lungs. In immunocompromised individuals, such as the elderly or those with HIV-AIDS, they can cause severe respiratory illness.

The causative agent of severe acute respiratory syndrome and Middle East respiratory syndrome were extremely pathogenic coronaviruses, and were found to be easily transmitted from human to human. SARS infected more than 8,000 people and resulted in nearly 800 deaths, MERS almost 2,500 with over 850 deaths.

Where did the virus come from?

The virus appears to have originated in the Huanan Seafood Wholesale Market in Wuhan, a Chinese city of over 11 million people approximately 650 miles south of Beijing. The market sells fish, as well as a panoply of other animal meats. However, it’s still unknown whether it emerged from an animal species like previous coronaviruses, SARS and MERS.

Markets have been implicated in the origin and spread of viral diseases in past epidemics and a large majority of the confirmed cases seen so far had been to the Huanan Seafood marketplace in recent weeks. The market seems like an integral piece of the puzzle, but researchers will need to undertake a range of experiments and testing to confirm the virus’ origin.

“Testing of animals in the Wuhan area, including sampling from the markets, will provide more information,” said Raina MacIntyre, a head of the biosecurity research program at the University of New South Wales’ Kirby Institute.

How many confirmed cases have been reported?

Four hundred forty cases have been confirmed as of Jan. 22. The bulk are in China, but cases have been confirmed in Thailand, Japan, South Korea and now the US, where a man in his 30s in Washington state presented with the disease at a local hospital.

A list of confirmed cases and their locations are below:

  • China: 440 confirmed cases
  • Thailand: 2 confirmed cases
  • Japan: 1 confirmed cases
  • South Korea: 1 confirmed case
  • US: 1 confirmed case
  • Australia: 1 suspected case

National authorities in China continue to monitor over 1,300 residents who attended the Wuhan market or have had prolonged contact with those presenting symptoms of the novel disease.

China’s National Health Commission said the virus is responsible for nine deaths as of Jan. 22. The first death was a 61-year-old man who had frequented the Wuhan market and had chronic liver disease and abdominal tumors. The second was a 69-year-old man who went to a hospital with severe damage to multiple organs. 

A study, published by the Imperial College London on Jan. 17, estimates the total number of 2019-nCoV cases could be much higher than reported, with over 1,700 cases. The work, led by Neil Ferguson, calculated how far the virus is likely to spread based on its incubation period and the amount of travel in and out of Wuhan since it was first detected.

WHO’s full situation report was last updated on Jan. 21 but only includes data up to Jan. 20.

How do we know it’s a new coronavirus?

In short, genes. 

Chinese scientists were able to isolate and unravel the genetic code of the virus from patients, ruling out other potential causes such as influenza, and confirm it is completely new. However the genetic code shows this virus has around 70% similarity to the SARS coronavirus.

Understanding the genetic code also helps researchers in two ways: It allows them to create tests that can identify the virus from patient samples and gives them potential insight into creating treatments or vaccines.

How does the coronavirus spread?

This is one of the major questions researchers are working feverishly to answer. It’s unclear what animals may act as a reservoir for the virus and how much of a role the live animal markets play in its spread. There haven’t been reports of health officials and attendants contracting the disease, which seems to suggest human-to-human transmission is limited — but this is still being investigated.

“It does not appear to be highly contagious between humans at this stage, based on about 60 known symptomatic cases to date,” Macintyre said in a statement on Jan. 17.

The market, believed to be the epicenter of the spread, was shut down on Jan. 1. The World Health Organization has suggested that human-to-human transmission can’t be excluded at this stage, which could cause some concern for authorities looking to slow the disease.

On Jan. 20, the University of Minnesota’s Center for Infectious Disease Research and Policy reported health workers in China had been infected with the virus. This was a notable turning point in the previous SARS epidemic, as health workers moving between countries were able to aid the spread of the disease. It also confirms human-to-human transmission is likely, which could hamper efforts to contain the virus in the coming weeks.

“The major concern is hospital outbreaks, which were seen with SARS and MERS coronaviruses,” MacIntyre said. “Meticulous triage and infection control is needed to prevent these outbreaks and protect health workers.”

An electron microscopy image of the coronavirus which causes SARS. 


Callista/Getty

What’s next?

Tedros Adhanom Ghebreyesus, the director-general of the WHO, will convene an emergency committee on Wednesday, Jan. 22 to ascertain whether this new virus constitutes a public health emergency.

“If WHO declares a public health emergency of international concern, it enables WHO greater powers for disease control using the International Health Regulations,” MacIntyre said.

Most recently, the emergency committee was convened for the Ebola virus epidemic in the Democratic Republic of the Congo. The meeting outlined a number of key strategies and commitments to strengthen and protect against the spread of the disease.

What are the symptoms?

The novel coronavirus causes similar symptoms to previously identified disease-causing coronaviruses. In currently identified patients, there seems to be a spectrum of illness: A large number experience mild pneumonia-like symptoms, while others have a much more severe response.

Patients present with:

  • Elevated body temperature 
  • A dry cough
  • Shortness of breath or breathing difficulties. 

As the disease progresses patients may also present with pneumonia, which inflames the lungs and causes them to fill with fluid which can be detected via X-ray, according to the WHO.

Is there a treatment for coronavirus?

Coronaviruses are notoriously hardy organisms. They’re effective at hiding from the human immune syste, and we haven’t developed any reliable treatments of vaccines that can eradicate them. In most cases, health officials attempt to deal with the symptoms.

That doesn’t mean vaccines are an impossibility, however. Chinese scientists were able to sequence the virus’ genetic code incredibly quickly, giving scientists a chance to study it and look for ways to combat the novel disease. According to CNN, researchers at the National Institute of Health are already working on a vaccine — though note it could be a year or more away from release.

Notably, SARS, which infected around 8,000 people and killed around 800 seemed to run its course and then mostly disappear. It wasn’t the vaccine that turned the tide on the disease but rather effective communication between nations and a range of tools that helped track the disease and its spread.

“We learnt that epidemics can be controlled without drugs or vaccines, using enhanced surveillance, case isolation, contact tracking, PPE and infection control measures,” MacIntyre said.

How to reduce your risk of coronavirus

With confirmed cases now seen in the US, Thailand, Japan, South Korea and potentially Australia, there is potential 2019-nCoV could be spreading much further afield. The WHO recommends a range of measures to protect yourself from contracting the disease based on good hand hygiene and good respiratory hygiene, in much the same way you would reduce the risk of contracting the flu.

A Twitter thread, developed by the WHO, is below.

This post was originally published on Jan. 19 and is updated as new information becomes available.

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Health Canada approves updated Moderna COVID-19 vaccine

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TORONTO – Health Canada has authorized Moderna’s updated COVID-19 vaccine that protects against currently circulating variants of the virus.

The mRNA vaccine, called Spikevax, has been reformulated to target the KP.2 subvariant of Omicron.

It will replace the previous version of the vaccine that was released a year ago, which targeted the XBB.1.5 subvariant of Omicron.

Health Canada recently asked provinces and territories to get rid of their older COVID-19 vaccines to ensure the most current vaccine will be used during this fall’s respiratory virus season.

Health Canada is also reviewing two other updated COVID-19 vaccines but has not yet authorized them.

They are Pfizer’s Comirnaty, which is also an mRNA vaccine, as well as Novavax’s protein-based vaccine.

This report by The Canadian Press was first published Sept. 17, 2024.

Canadian Press health coverage receives support through a partnership with the Canadian Medical Association. CP is solely responsible for this content.

The Canadian Press. All rights reserved.

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These people say they got listeria after drinking recalled plant-based milks

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TORONTO – Sanniah Jabeen holds a sonogram of the unborn baby she lost after contracting listeria last December. Beneath, it says “love at first sight.”

Jabeen says she believes she and her baby were poisoned by a listeria outbreak linked to some plant-based milks and wants answers. An investigation continues into the recall declared July 8 of several Silk and Great Value plant-based beverages.

“I don’t even have the words. I’m still processing that,” Jabeen says of her loss. She was 18 weeks pregnant when she went into preterm labour.

The first infection linked to the recall was traced back to August 2023. One year later on Aug. 12, 2024, the Public Health Agency of Canada said three people had died and 20 were infected.

The number of cases is likely much higher, says Lawrence Goodridge, Canada Research Chair in foodborne pathogen dynamics at the University of Guelph: “For every person known, generally speaking, there’s typically 20 to 25 or maybe 30 people that are unknown.”

The case count has remained unchanged over the last month, but the Public Health Agency of Canada says it won’t declare the outbreak over until early October because of listeria’s 70-day incubation period and the reporting delays that accompany it.

Danone Canada’s head of communications said in an email Wednesday that the company is still investigating the “root cause” of the outbreak, which has been linked to a production line at a Pickering, Ont., packaging facility.

Pregnant people, adults over 60, and those with weakened immune systems are most at risk of becoming sick with severe listeriosis. If the infection spreads to an unborn baby, Health Canada says it can cause miscarriage, stillbirth, premature birth or life-threatening illness in a newborn.

The Canadian Press spoke to 10 people, from the parents of a toddler to an 89-year-old senior, who say they became sick with listeria after drinking from cartons of plant-based milk stamped with the recalled product code. Here’s a look at some of their experiences.

Sanniah Jabeen, 32, Toronto

Jabeen says she regularly drank Silk oat and almond milk in smoothies while pregnant, and began vomiting seven times a day and shivering at night in December 2023. She had “the worst headache of (her) life” when she went to the emergency room on Dec. 15.

“I just wasn’t functioning like a normal human being,” Jabeen says.

Told she was dehydrated, Jabeen was given fluids and a blood test and sent home. Four days later, she returned to hospital.

“They told me that since you’re 18 weeks, there’s nothing you can do to save your baby,” says Jabeen, who moved to Toronto from Pakistan five years ago.

Jabeen later learned she had listeriosis and an autopsy revealed her baby was infected, too.

“It broke my heart to read that report because I was just imagining my baby drinking poisoned amniotic fluid inside of me. The womb is a place where your baby is supposed to be the safest,” Jabeen said.

Jabeen’s case is likely not included in PHAC’s count. Jabeen says she was called by Health Canada and asked what dairy and fresh produce she ate – foods more commonly associated with listeria – but not asked about plant-based beverages.

She’s pregnant again, and is due in several months. At first, she was scared to eat, not knowing what caused the infection during her last pregnancy.

“Ever since I learned about the almond, oat milk situation, I’ve been feeling a bit better knowing that it wasn’t something that I did. It was something else that caused it. It wasn’t my fault,” Jabeen said.

She’s since joined a proposed class action lawsuit launched by LPC Avocates against the manufacturers and sellers of Silk and Great Value plant-based beverages. The lawsuit has not yet been certified by a judge.

Natalie Grant and her seven year-old daughter, Bowmanville, Ont.

Natalie Grant says she was in a hospital waiting room when she saw a television news report about the recall. She wondered if the dark chocolate almond milk her daughter drank daily was contaminated.

She had brought the girl to hospital because she was vomiting every half hour, constantly on the toilet with diarrhea, and had severe pain in her abdomen.

“I’m definitely thinking that this is a pretty solid chance that she’s got listeria at this point because I knew she had all the symptoms,” Grant says of seeing the news report.

Once her daughter could hold fluids, they went home and Grant cross-checked the recalled product code – 7825 – with the one on her carton. They matched.

“I called the emerg and I said I’m pretty confident she’s been exposed,” Grant said. She was told to return to the hospital if her daughter’s symptoms worsened. An hour and a half later, her fever spiked, the vomiting returned, her face flushed and her energy plummeted.

Grant says they were sent to a hospital in Ajax, Ont. and stayed two weeks while her daughter received antibiotics four times a day until she was discharged July 23.

“Knowing that my little one was just so affected and how it affected us as a family alone, there’s a bitterness left behind,” Grant said. She’s also joined the proposed class action.

Thelma Feldman, 89, Toronto

Thelma Feldman says she regularly taught yoga to friends in her condo building before getting sickened by listeria on July 2. Now, she has a walker and her body aches. She has headaches and digestive problems.

“I’m kind of depressed,” she says.

“It’s caused me a lot of physical and emotional pain.”

Much of the early days of her illness are a blur. She knows she boarded an ambulance with profuse diarrhea on July 2 and spent five days at North York General Hospital. Afterwards, she remembers Health Canada officials entering her apartment and removing Silk almond milk from her fridge, and volunteers from a community organization giving her sponge baths.

“At my age, 89, I’m not a kid anymore and healing takes longer,” Feldman says.

“I don’t even feel like being with people. I just sit at home.”

Jasmine Jiles and three-year-old Max, Kahnawake Mohawk Territory, Que.

Jasmine Jiles says her three-year-old son Max came down with flu-like symptoms and cradled his ears in what she interpreted as a sign of pain, like the one pounding in her own head, around early July.

When Jiles heard about the recall soon after, she called Danone Canada, the plant-based milk manufacturer, to find out if their Silk coconut milk was in the contaminated batch. It was, she says.

“My son is very small, he’s very young, so I asked what we do in terms of overall monitoring and she said someone from the company would get in touch within 24 to 48 hours,” Jiles says from a First Nations reserve near Montreal.

“I never got a call back. I never got an email”

At home, her son’s fever broke after three days, but gas pains stuck with him, she says. It took a couple weeks for him to get back to normal.

“In hindsight, I should have taken him (to the hospital) but we just tried to see if we could nurse him at home because wait times are pretty extreme,” Jiles says, “and I don’t have child care at the moment.”

Joseph Desmond, 50, Sydney, N.S.

Joseph Desmond says he suffered a seizure and fell off his sofa on July 9. He went to the emergency room, where they ran an electroencephalogram (EEG) test, and then returned home. Within hours, he had a second seizure and went back to hospital.

His third seizure happened the next morning while walking to the nurse’s station.

In severe cases of listeriosis, bacteria can spread to the central nervous system and cause seizures, according to Health Canada.

“The last two months have really been a nightmare,” says Desmond, who has joined the proposed lawsuit.

When he returned home from the hospital, his daughter took a carton of Silk dark chocolate almond milk out of the fridge and asked if he had heard about the recall. By that point, Desmond says he was on his second two-litre carton after finishing the first in June.

“It was pretty scary. Terrifying. I honestly thought I was going to die.”

Cheryl McCombe, 63, Haliburton, Ont.

The morning after suffering a second episode of vomiting, feverish sweats and diarrhea in the middle of the night in early July, Cheryl McCombe scrolled through the news on her phone and came across the recall.

A few years earlier, McCombe says she started drinking plant-based milks because it seemed like a healthier choice to splash in her morning coffee. On June 30, she bought two cartons of Silk cashew almond milk.

“It was on the (recall) list. I thought, ‘Oh my God, I got listeria,’” McCombe says. She called her doctor’s office and visited an urgent care clinic hoping to get tested and confirm her suspicion, but she says, “I was basically shut down at the door.”

Public Health Ontario does not recommend listeria testing for infected individuals with mild symptoms unless they are at risk of developing severe illness, such as people who are immunocompromised, elderly, pregnant or newborn.

“No wonder they couldn’t connect the dots,” she adds, referencing that it took close to a year for public health officials to find the source of the outbreak.

“I am a woman in my 60s and sometimes these signs are of, you know, when you’re vomiting and things like that, it can be a sign in women of a bigger issue,” McCombe says. She was seeking confirmation that wasn’t the case.

Disappointed, with her stomach still feeling off, she says she decided to boost her gut health with probiotics. After a couple weeks she started to feel like herself.

But since then, McCombe says, “I’m back on Kawartha Dairy cream in my coffee.”

This report by The Canadian Press was first published Sept. 16, 2024.

Canadian Press health coverage receives support through a partnership with the Canadian Medical Association. CP is solely responsible for this content.

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B.C. mayors seek ‘immediate action’ from federal government on mental health crisis

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VANCOUVER – Mayors and other leaders from several British Columbia communities say the provincial and federal governments need to take “immediate action” to tackle mental health and public safety issues that have reached crisis levels.

Vancouver Mayor Ken Sim says it’s become “abundantly clear” that mental health and addiction issues and public safety have caused crises that are “gripping” Vancouver, and he and other politicians, First Nations leaders and law enforcement officials are pleading for federal and provincial help.

In a letter to Prime Minister Justin Trudeau and Premier David Eby, mayors say there are “three critical fronts” that require action including “mandatory care” for people with severe mental health and addiction issues.

The letter says senior governments also need to bring in “meaningful bail reform” for repeat offenders, and the federal government must improve policing at Metro Vancouver ports to stop illicit drugs from coming in and stolen vehicles from being exported.

Sim says the “current system” has failed British Columbians, and the number of people dealing with severe mental health and addiction issues due to lack of proper care has “reached a critical point.”

Vancouver Police Chief Adam Palmer says repeat violent offenders are too often released on bail due to a “revolving door of justice,” and a new approach is needed to deal with mentally ill people who “pose a serious and immediate danger to themselves and others.”

This report by The Canadian Press was first published Sept. 16, 2024

The Canadian Press. All rights reserved.

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