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Tech & Science Chinese scientists say coronavirus illness symptoms peaked on February 1 — but they warn that the epidemic could 'rebound'

01:25  19 february  2020
01:25  19 february  2020 Source:   businessinsider.com.au

Coronavirus evacuation flight from Wuhan lands in Darwin

  Coronavirus evacuation flight from Wuhan lands in Darwin Australians who were stranded in the coronavirus epicentre of Wuhan in China have arrived in Darwin. Australians who were stranded in the coronavirus epicentre of Wuhan in Their flight touched down at Darwin's RAAF base shortly before midday local time.The landing came just hours after the coronavirus death toll in mainland China rose to 811, surpassing the number of fatalities in the 2002-2003 SARS outbreak.The evacuees were subject to a rigorous screening for the virus throughout their journey, with tests conducted before take-off and twice during the flight.

Coronavirus fatality rate in China . Source: Chinese Centre for Disease Control. Looking forward, the paper finds that " the epidemic curve of onset of symptoms " peaked around 23-26 January before The study suggests that the downward trend in the overall epidemic curve could mean that

Most people infected by the new coronavirus in China have mild symptoms The epidemic reached its "first peak " between January 24 and 26, the report said . The authors warn that with many people returning from the holiday, the country needs to brace itself for a "possible rebound of the epidemic ".

A nurse prepares medicine for patients at Jinyintan Hospital in Wuhan on February 16, 2020. A nurse prepares medicine for patients at Jinyintan Hospital in Wuhan on February 16, 2020.
  • A study of more than 72,000 coronavirus patients in China found that the largest number of patients were showing symptoms on February 1.
  • That could be a sign that the outbreak is tapering off.
  • But the authors also warned that the outbreak could rebound once Chinese residents return to school and work.
  • For the latest case total and death toll, see Business Insider's live updates here.
  • Visit Business Insider's homepage for more stories.

With each passing day, China continues to report more cases of the deadly coronavirus that emerged in the city of Wuhan in December.

Some coronavirus patients experience nausea, vomiting, or diarrhoea before they get a fever. They could spread the virus through poop.

  Some coronavirus patients experience nausea, vomiting, or diarrhoea before they get a fever. They could spread the virus through poop. Some patients with the new coronavirus first detected in Wuhan, China, experience nausea, vomiting, or diarrhoea. Though the virus primarily causes fever or difficulty breathing, these rarer symptoms sometimes appear first. In one case, a coronavirus patient was placed in the wrong ward because they only showed abdominal symptoms. They spread the virus to 14 other people there. Like SARS, the new coronavirus could spread through poop. For the latest case total, death toll, and travel information, see Business Insider's live updates here. Visit Business Insider's homepage for more stories.

CORONAVIRUS chaos appeared to come out of the blue as the illness has swiftly impacted countries all over the world. However, it has emerged that While scientists have been able to flag various illnesses as potential threats, some have argued that the research has been negligent in some areas

WUHAN, China — A mysterious illness had stricken seven patients at a hospital, and a doctor tried The SARS epidemic began when a coronavirus jumped from bats to Asian palm civets An internal document from Wuhan Union Hospital warned its employees that the coronavirus could be spread

COVID-19, as the illness is now known, has so far infected more than 73,000 people and killed at least 1,875.

But a recent study of more than 72,000 patients in China suggests that coronavirus illnesses may have peaked in early February.

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On Tuesday top Chinese epidemiologist Zhong Nanshan said the epidemic should peak in China this month before subsiding, but the WHO said the outbreak remained hard to assess. Coronavirus has now overtaken the 2003 Sars epidemic in both confirmed cases and deaths.

But coronaviruses can also be deadly. SARS, or severe acute respiratory syndrome, is caused by a 'Until this new coronavirus was identified, there were only six different coronaviruses known to A change in the way cases are confirmed on February 13 – doctors decided to start using lung scans

The study authors, who work at the Chinese Centre for Disease Control and Prevention (China CDC), examined cases of the virus from December 8 to February 11. Their results showed that the largest number of coronavirus patients started exhibiting symptoms on February 1.

Since then, there haven't been as many new illnesses, the authors found. That could be a sign that the outbreak is tapering off. But the authors also warned that China should prepare for a "possible rebound of the epidemic."

Severe cases among healthcare workers have gone down considerably

The new study offers one of the broadest pictures of how the virus operates in humans so far. The results showed that the majority of patients have been men between the ages of 30 and 69 in Hubei Province.

More than 80% of cases in China have been mild, the research found - those patients might experience a fever or dry cough, but they aren't likely to have difficulty breathing or develop a severe lung infection within 24 to 48 hours. More severe cases of COVID-19 are marked by pneumonia-like symptoms.

All four NSW coronavirus patients free from disease

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Tedros had a word of warning for Chinese authorities, who have suggested there is light at the end of the tunnel. It is "impossible to predict which direction this epidemic The coronavirus epidemic has consequences for international cultural events. The Art Basel Hong Kong art fair has been canceled.

What is a coronavirus ? Coronaviruses are a large family of viruses that can cause respiratory The main reason for the declaration is concern that the virus could spread to countries with weaker Symptoms of the new coronavirus include fever, cough and difficulty breathing, according to the CDC.

a group of people wearing costumes: Nurses in protective gear talk to people in the reception area of the First People's Hospital in Yueyang, Hunan Province, China, on January 28, 2020. Nurses in protective gear talk to people in the reception area of the First People's Hospital in Yueyang, Hunan Province, China, on January 28, 2020.

Less than 5% of the cases in the study were critical; those patients had respiratory failure, septic shock, or multiple organ failure. Only half of the critical patients died.

Healthcare workers represented around 7% of the confirmed cases.

The number of critical cases among healthcare workers in China also declined from early January to early February, the study found. At the start of the outbreak, around 45% of cases among healthcare workers were severe or critical and around 5% were deadly. By early February, less than 9% of the cases were severe or critical and only 0.3% were deadly.

Another spike in cases could come in the coming months

The COVID-19 outbreak began as hundreds of millions of people prepared to travel for the Chinese Lunar New Year - one of the largest annual human migrations in the world. Many Chinese cities called off their festivities because of the virus, and more than 50 million people in China's Hubei province have been under lockdown since late January.

Australians quarantined on Christmas Island to return to mainland

  Australians quarantined on Christmas Island to return to mainland The first Australians evacuated from Wuhan, China, have returned to the Australian mainland after 14 days in quarantine on Christmas Island following the coronavirus outbreak.The 241 people have now been taken home to major cities across the country after being monitored for symptoms.

All transportation in and out of Wuhan has been halted.

Volunteers in protective suits disinfect a factory with sanitizing equipment in Huzhou, Zhejiang province, China, on February 18, 2020. Volunteers in protective suits disinfect a factory with sanitizing equipment in Huzhou, Zhejiang province, China, on February 18, 2020.

Despite these extreme efforts, the coronavirus spread from Wuhan to the rest of mainland China within 30 days, according to the study. But the authors said the outcome could have been worse if China had not shut down entire cities, cancelled New Year celebrations, rapidly built new hospitals, and required people in Wuhan to wear masks.

"The massive vigorous actions taken by the Chinese government have slowed down the epidemic in China and curbed spread to the rest of the world," they wrote.

Thus far, around 900 cases have been reported outside the Chinese mainland - around 1.3% of the global total.

But the Chinese CDC expressed concern about what could happen after the quarantines end. The authors warned that a spike in cases could be imminent once Chinese residents return to school and work.

"Although the epidemic appears to be in decline in the lead up to February 11, 2020, we may yet face more challenges," the researchers wrote. "We need to prepare for a possible rebound of the COVID-19 epidemic in the coming weeks and months."

Read more about the coronavirus:

  • What we know about the 15 confirmed US coronavirus cases
  • Men represent the majority of coronavirus cases so far, according to a new study. Researchers have a few guesses as to why.
  • Some coronavirus patients experience nausea, vomiting, or diarrhoea before they get a fever. They could spread the virus through poop.

One key indicator will tell us when the coronavirus outbreak is winding down — but we're not seeing it yet .
A recent study of coronavirus patients in China suggested the outbreak may be tapering off. For the outbreak to burn out, the average patient needs to infect less than one other person. That's not happening yet.The virus' continued spread prompts an obvious question: When will this end?

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