COVID-19 spreads even before people show symptoms, study says

Agencies
March 15, 2020

Houston, Mar 15: Researchers, studying the novel coronavirus, have found that the time between cases in a chain of transmission is less than a week, and over 10 per cent of patients are infected by someone who has the virus, but does not show symptoms yet, a finding that may help public health officials contain the pandemic.

The study, published in the journal Emerging Infectious Diseases, estimated what's called the serial interval of the coronavirus by measuring the time it takes for symptoms to appear in two people with the virus -- the person who infects another, and the infected second person.

According to the researchers, including those from the University of Texas at Austin, the average serial interval for the novel coronavirus in China was approximately four days.

They said the speed of an epidemic depends on two things -- how many people each case infects, and how long it takes cases to spread.

The first quantity, the scientists said, is called the reproduction number, and the second is the serial interval.

Due to the short serial interval of the disease caused by the coronavirus -- COVID-19 -- they said, emerging outbreaks will grow quickly, and could be difficult to stop.

“Ebola, with a serial interval of several weeks, is much easier to contain than influenza, with a serial interval of only a few days,” said Lauren Ancel Meyers, study co-author from UT Austin.

Meyers explained that public health responders to Ebola outbreaks have much more time to identify and isolate cases before they infect others.

“The data suggest that this coronavirus may spread like the flu. That means we need to move quickly and aggressively to curb the emerging threat,” Meyers added.

In the study, the scientists examined more than 450 infection case reports from 93 cities in China, and found the strongest evidence yet that people without symptoms must be transmitting the virus -- known as pre-symptomatic transmission.

More than one in ten infections were from people who had the virus but did not yet feel sick, the scientists said.

While researchers across the globe had some uncertainty until now about asymptomatic transmission with the coronavirus, the new evidence could provide guidance to public health officials on how to contain the spread of the disease.

“This provides evidence that extensive control measures including isolation, quarantine, school closures, travel restrictions and cancellation of mass gatherings may be warranted,” Meyers said.

The researchers cautioned that asymptomatic transmission makes containment more difficult.

With hundreds of new cases emerging around the world every day, the scientists said, the data may offer a different picture over time.

They said infection case reports are based on people's memories of where they went and whom they had contact with, and if health officials move quickly to isolate patients, that may also skew the data.

“Our findings are corroborated by instances of silent transmission and rising case counts in hundreds of cities worldwide. This tells us that COVID-19 outbreaks can be elusive and require extreme measures,” Meyers said.

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Agencies
May 17,2020

Washington, May 17: The overall number of global coronavirus cases has increased to over 4.6 million, while the death toll has surpassed 311,000, according to the Johns Hopkins University.

As of Sunday morning, the total number of cases stood at 4,634,068, while the death toll increased to 311,781, the University's Center for Systems Science and Engineering (CSSE) revealed in its latest update.

The US currently accounts for the world's highest number of cases and deaths at 1,467,796 and 88,754, respectively.

In terms of cases, Russia has the second highest number of infections at 272,043, followed by the UK (241,461), Brazil (233,142), Spain (230,698), Italy (224,760), France (179,630), Germany (175,752), Turkey (148,067) and Iran (118,392), the CSSE figures showed.

Meanwhile, the UK accounted for the second highest COVID-19 deaths worldwide at 34,546.

The other countries with over 10,000 deaths are Italy (31,763), Spain (27,563), France (27,532), and Brazil (15,662).

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News Network
April 11,2020

Washington, Apr 11: China is considered a developing country, make the United States too a developing one, US President Donald Trump said on Friday, alleging that Beijing has taken advantage of his country.

"China has been unbelievably taken advantage of us and other countries. You know, for instance, they are considered a developing nation. I said well then make us a developing nation too,” Trump told reporters at his daily White House news conference on coronavirus.

The president was responding to a question on China.

“They get big advantages because they are a developing nation. India, a developing nation. The United States is a big developed nation. Well, we have plenty of development to do,” he said.

Reiterating that United States was taken advantage of by the World Trade Organization, Trump said the Chinese economy started booming after it joined WTO with the help of the US.

“If you look at the history of China, it was only since they went into the WTO that they became a rocket ship with their economy. They were flatlined for years and years,” he said.

“Frankly, for many, many decades. And it was only when they came into the WTO that they became a rocket ship because they took advantage of all -- I'm not even blaming them. I'm saying how stupid were the people that stood here and allowed it to happen,” he said.

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The Trump Administration will now allow that to happen, he said.

“If they don't treat us fairly, will leave. But now we're starting to win cases,” he said.

Alleging that China has taken advantage of the United States for 30 years, he said, China has taken advantage of the US through WTO and using rules that are unfair to the United States.

"They should have never been allowed it, this should have never been allowed to happen", he added.

“When China joined and was allowed to join under those circumstances the WTO, that was a very bad day for the United States because they have rules and regulations that were far different and far easier than our rules and regulations,” he said.

“Plus. They took advantage of them down to the last. China took advantage of them like few people would even think to take advantage of them and again they are considered right a developing nation,” he added.

The United States, he rued, is not considered a developing nation.

“The were given advantages (for being a developing nation). For many years China has ripped off the United States. Then I came along and right now, as you know, China is paying 25 percent," said Trump, adding that the US is now gaining "billions and billions and billions of dollars in tariffs from China”.

The US is not paying, he asserted.

“Not every country is China but China would devalue their currency and they would also pour out money and they essentially were paying most of those tariffs not us,” he said.

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News Network
March 25,2020

Wellington, Mar 25: New Zealand has declared a state of emergency as it prepares to go into an unprecedented lockdown late Wednesday for about a month.

The declaration temporarily gives police and the military extra powers. And Prime Minister Jacinda Ardern says any New Zealanders returning home from overseas who show symptoms of COVID-19 will be put in isolation at an approved facility.

“I have one simple message for New Zealanders today as we head into the next four weeks: ‘stay at home,’” Ardern said. “It will break the chain of transmission and it will save lives.”

Ardern said exceptions include people working crucial jobs, those leaving to pick up essentials like groceries, and those engaging in solitary exercise.

The country has 205 reported cases of the virus, although Ardern said that number could rise into the thousands before it begins to recede even with the strict measures being taken.

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