12 killed as lorry ploughs into Berlin Xmas market

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.

Mumbai, May 7: Maharashtra Minister Nawab Malik on Wednesday accused the BJP-led Uttar Pradesh and Karnataka governments of adopting an uncooperative approach in taking back migrant workers hailing from these two states.

Mr Malik said that such a problem has not arisen with other states like Bihar, Rajasthan and another BJP-ruled state, Madhya Pradesh.

"They are creating new hurdles. There are no such problems in case of other states like Bihar, Rajasthan, Madhya Pradesh and West Bengal though.

"The process (of sending back migrants) has been smooth in the case of these states," Mr Malik said.

The NCP leader alleged that the Uttar Pradesh and Karnataka governments either don't want the people hailing from their states to return or are deliberately creating hurdles so that out of job workers do not go back in big numbers.

The Uttar Pradesh and Karnataka government should understand that the migrant workers are not ready mentally to stay back in Maharashtra and want to return to their native states, Mr Malik said.

The NCP minister said the Maharashtra government has been sending the applications received from migrant workers to the nodal officers of their respective native districts.

Once the nodal officers (of the native districts) concerned approve the applications, the workers are sent back either by trains or private vehicles following their medical tests, Mr Malik added.

Apr 26: The remarkable story of an airman who overcame prejudice to become one of only a handful of Indian fighter pilots in the First World War has emerged in newly-released archive files by the UK's Commonwealth War Graves Commission (CWGC).

Lieutenant Shri Krishna Chanda Welinkar is one of the thousands of moving stories from the war preserved in family correspondence and being brought alive as part of a digitisation project.

The never-before-published files contain thousands of letters, pictures and other papers sent between the Commission and the next of the kin of First World War dead.

Among them is the story of Welinkar, who hailed from Bombay in colonial India. After much hardship and discrimination, he eventually became a pilot and went missing while on patrol over the skies above the Western Front in June 1918.

His family had to wait nearly three years before they finally knew for certain that he had died, and his grave was located.

“For everyone who died in the First World War, there was inevitably a partner, parent or child back home who had questions. The heartbreaking letters in CWGC's archive give us an insight into what it was like for those families trying to come to terms with their loss,” said Andrew Fetherston, chief archivist for CWGC.

“They are stories that show desperate searches for closure, former enemies uniting and, on many occasions, the sad realisation that a missing loved one would always remain so. We are pleased to be able to make this invaluable piece of World War history accessible to a new generation and help deepen our understanding of how the First World War impacted those who were left behind,” he said.

Welinkar was one of the 1.3 million Indians who answered the call to fight for the British Empire. Nearly 74,000 never saw their homeland again and are remembered today in cemeteries and memorials throughout the world, including France, Belgium, the Middle East and Africa.

Welinkar was a well-educated man studying at Cambridge University. He trained to become an aviator in Middlesex and wished to join the Royal Flying Corps, later known as the Royal Air Force.

Upon attempting to enlist, Welinkar encountered the same prejudices as his other fellow Indian airmen and was encouraged to become an air mechanic instead.

He was eventually given a commission in the Royal Flying Corps as an Officer. In 1918, he was posted to France and patrolled the skies above the Western Front.

In June 1918, Lieutenant Welinkar embarked on what would be his final patrol; he did not return and was reported missing. His fate remained unknown for many months afterwards.

The newly-released e-files chronicle the remarkable discovery of Welinkar and his final resting place long after the war had ended. Colonel Barton, who knew Welinkar, acted on behalf of his mother and helped find her missing son. They spoke to former enemies and honed their search to the grave of an unidentified man, buried by the Germans as “Oberleutnant S.C. Wumkar” in a grave in Rouvroy, Belgium.

The body was later moved and reinterred in Hangard Communal Cemetery Extension but it wasn't until the vital clue, found in the original German burial records in February 1921, that it was confirmed beyond doubt this grave was of Welinkar's.

In May 1921, Colonel Barton, on behalf of Welinkar's mother, requested that a Commission headstone be placed on the grave with the following personal inscription: “To the Honoured Memory of One of the Empire's Bravest Sons”.

This records – known as Enquiry Files – are part of a collection of nearly 3,000 files which have never been made available to the public before. Nearly half have been digitised so far, alongside a previously unreleased collection of more than 16,000 photographs held in negatives in the Commission's archive.

The files, internally referred to simply as E-Files, contain correspondence between the CWGC and the next of kin of the war dead. They often contain letters, typed memos between Commission staff and on occasion photos, maps and diagrams.

CWGC only holds an enquiry file for a small proportion of the 1.7 million people it commemorates from the Commonwealth. Today it is only possible to release those surviving records from the First World War because correspondence with families of Second World War casualties often involves people still alive today and cannot be made public for many years, due to the UK's data protection rules.

To date, more than 1,300 of the surviving 3,000 First World War enquiry files have been digitised.

The CWGC commemorates the 1.7 million Commonwealth servicemen and women who died during the two World Wars. It also holds and updates an extensive and accessible records archive, while operating over 23,000 locations in more than 150 countries and territories.