US bans laptops, iPads on direct flights from Dubai, Abu Dhbai, Riyadh, Jeddah, Kuwait, Doha

May 5: Global coronavirus deaths reached 250,000 on Monday after recorded infections topped 3.5 million, a news agency tally of official government data showed, although the rate of fatalities has slowed.

North America and European countries accounted for most of the new deaths and cases reported in recent days, but numbers were rising from smaller bases in Latin America, Africa and Russia.

Globally, there were 3,062 new deaths and 61,923 new cases over the past 24 hours, taking total cases to 3.58 million.

That easily exceeds the estimated 140,000 deaths worldwide in 2018 caused by measles, and compares with around 3 million to 5 million cases of severe illness caused annually by seasonal influenza, according to the World Health Organization (WHO).

While the current trajectory of COVID-19 falls far short of the 1918 Spanish flu, which infected an estimated 500 million people, killing at least 10% of patients, experts worry the available data is underplaying the true impact of the pandemic.

The concerns come as several countries begin to ease strict lockdowns that have been credited with helping contain the spread of the virus.

"We could easily have a second or a third wave because a lot of places aren't immune," Peter Collignon, an infectious diseases physician and microbiologist at Canberra Hospital, told Reuters. He noted the world was well short of herd immunity, which requires around 60% of the population to have recovered from the disease.

The first death linked to COVID-19 was reported on Jan. 10 in Wuhan, China after the coronavirus first emerged there in December. Global fatalities grew at a rate of 1-2% in recent days, down from 14% on March 21, according to the Reuters data.

DEATH RATE ANOMALIES

Mortality rates from recorded infections vary greatly from country to country.

Collignon said any country with a mortality rate of more than 2% almost certainly had underreported case numbers. Health experts fear those ratios could worsen in regions and countries less prepared to deal with the health crisis.

"If your mortality rate is higher than 2%, you've missed a lot of cases," he said, noting that countries overwhelmed by the outbreak were less likely to conduct testing in the community and record deaths outside of hospitals.

In the United States, around half the country's state governors partially reopened their economies over the weekend, while others, including New York Governor Andrew Cuomo, declared the move was premature.

In Britain, Prime Minister Boris Johnson, who battled COVID-19 last month, has said the country was over the peak but it was still too early to relax lockdown measures.

Even in countries where the suppression of the disease has been considered successful, such as Australia and New Zealand which have recorded low daily rates of new infections for weeks, officials have been cautious.

Australian Prime Minister Scott Morrison has predicated a full lifting of curbs on widespread public adoption of a mobile phone tracking app and increased testing levels.

Washington DC, Jul 7: With US President Donald Trump promoting re-opening the economy, the country has now four epicentres of coronavirus instead of one -- Los Angeles, cities in Texas, cities in Florida and Arizona. This has led to the governors fearing that their hospitals could be overrun with patients.

"We are right back where we were at the peak of the epidemic during the New York outbreak...The difference now is that we really had one epicentre of spread when New York was going through its hardship. Now, we really have four major epicentres of spread -- Los Angeles, cities in Texas, cities in Florida and Arizona. Florida looks to be in the worst shape," Scott Gottlieb, former Food and Drug Administration commissioner was quoted by The Washington Post as saying in an interview.

As per the latest data, Florida, New York and California have crossed the 200,000 mark of coronavirus cases.

After Texas continued to break its own record of registering the highest number of coronavirus cases, Austin Mayor Steve Adler (D) was quoted as saying in an interview, "If we do not change this trajectory, then I am within two weeks of having our hospitals overrun."

He further said that intensive care units in the city will start overflowing within 10 days.

Echoing similar sentiments, Judge Lina Hidalgo, the top elected official in Harris County, said, "As long as we're doing as little as possible and hoping for the best, we are always going to be chasing this thing. We are always going to be behind and the virus will always outrun us...And so what we need right now is to do what works, which is a stay-home order."

She was stripped of authority to issue stay-at-home orders after Governor Greg Abbott decided to move forward with the reopening plan.

"It is clear that the (coronavirus) growth is exponential at this point...We have been breaking record after record after record... the last couple of weeks," Miami Mayor Francis Suarez was quoted as saying in an interview.

"The city of Miami was the last city in the entire state of Florida to open. I was criticized for waiting so long. But there is no doubt that the fact that when we reopened, people started socialising as if... the virus didn't exist."

He further said that if the numbers do not begin to fall "more drastic measures" will be taken in the coming week.

As per the latest update by the Johns Hopkins University, a total of 2,938,625 people in the US have tested coronavirus positive and 130,306 deaths have been reported so far.

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.