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French Nobel prize winning scientist Luc Montagnier has sparked a fresh controversy by claiming that the SARS-CoV-2 virus came from a lab, and is the result of an attempt to manufacture a vaccine against the AIDS virus.

In an interview given to French CNews channel and during a podcast by Pourquoi Docteur, professor Montagnier who co-discovered HIV (Human Immunodeficiency Virus) claimed the presence of elements of HIV in the genome of the coronavirus and even elements of the "germ of malaria" are highly suspect, according to a report in Asia Times.

"The Wuhan city laboratory has specialized in these coronaviruses since the early 2000s. They have expertise in this area," he was quoted as saying.

The theory that Covid-19 virus originated in the lab is making rounds for quite some time.

US President Donald Trump last week acknowledged Fox News report that the novel coronavirus may have been accidentally leaked by an intern working at the Wuhan Institute of Virology in China.

The Fox News, in an exclusive report, based on unnamed sources has claimed that though the virus is a naturally occurring strain among bats and not a bioweapon, but it was being studied in Wuhan laboratory.

The initial transmission of the virus was bat-to-human, the news channel said, adding that the "patient zero" worked at the laboratory. The lab employee was accidentally infected before spreading the disease among the common people outside the lab in Wuhan city.

Professor Montagnier was awarded the 2008 Nobel Prize in Medicine for the identification of AIDS virus, with his colleague professor Franeoise Barre-Sinoussi.

His fresh claim on coronavirus, however, received criticism from scientists, including his colleagues.

"Just in case you don't know. Dr Montagnier has been rolling downhill incredibly fast in the last few years. From baselessly defending homeopathy to becoming an antivaxxer. Whatever he says, just don't believe him," tweeted Juan Carlos Gabaldon.

As per a recent Washington Post, two years ago, the US embassy officials in China raised concerns about the insufficient biosafety at the Chinese government's Wuhan Institute of Virology where deadly viruses and infectious diseases are studied.

Though the institute, located quite close to the Wuhan wet market, is China's first biosafety level IV lab, the US state department had warned in 2018 about "serious shortage of appropriately trained technicians and investigators needed to safely operate this high-containment laboratory".

New Delhi, Apr 29: WhatsApp on Tuesday said it will now allow up to eight people to connect on a group video call as an increasing number of people turn to digital platforms to connect with friends and family amid the COVID-19 pandemic.

The Facebook-owned company said over the last month, people on average are spending over 15 billion minutes talking each day on WhatsApp calls, well above a typical day before the pandemic.

"...we see that people all over the world are turning to voice and video calling on WhatsApp more than ever before. Group calling has been particularly useful and our users have asked to connect with more people at once," WhatsApp said in a blogpost.

Starting Tuesday, the company is doubling the number of participants one can have on a WhatsApp video or voice call from 4 to 8 people at a time, it added.

WhatsApp emphasised that like written messages, all calls on its platform are protected with end-to-end encryption.

"We have built group calling in a way that makes it available for as many users as possible, including people on lower-end devices and slow network conditions," it added.

Also Read: Coronavirus India update: State-wise total number of confirmed cases, deaths

WhatsApp said that to access the new, higher participant limit on WhatsApp calls, all participants in a call need to update to the latest version of WhatsApp available on iPhone or Android.

Video calling tools like Google Meet, Microsoft Teams, Zoom and others have also seen a significant jump in userbase and traffic as people connect while maintaining social distancing amid the coronavirus outbreak.

Last week, Facebook had introduced Messenger Rooms that will soon hold up to 50 people with no time limit.

It had added that the company will also add ways to create rooms from Instagram Direct, WhatsApp and Portal.

Noting that between WhatsApp and Messenger, more than 700 million accounts participate in calls every day, Facebook had said, adding that video calling on Messenger and WhatsApp more than doubled in many countries.

Also, views of Facebook Live and Instagram Live videos have also increased significantly in March, it said.

Bengaluru, Mar 4: A total of five people suspected of being infected with Coronavirus have been admitted to the isolation wards of Rajiv Gandhi Institute of Chest Diseases in Bengaluru.

Samples of these patients have been collected and their reports are likely to be received later today.

Karnataka Chief Minister BS Yediyurappa has assured people in state about preparedness to tackle Coronavirus.

Earlier in the day, Union Health Minister Dr Harsh Vardhan had said that there were 28 cases of Coronavirus in the country and added that universal screening of all international flights will begin to control the spread of the deadly virus.

Global deaths due to Coronavirus outbreak have risen above 3,000.