Pope Francis signals elderly married men could become priests

Canadian researchers are developing a DNA vaccine for SARS-CoV-2, the coronavirus that causes COVID-19 and has currently infected nearly 5,00,000 people worldwide and crippled the global economy.

Entos Pharmaceuticals, a health-care biotechnology company headed by a University of Alberta researchers, develop new therapeutic compounds using the company's proprietary drug-delivery platform and has begun manufacturing vaccine candidates against the novel coronavirus.

"Given the urgency of the situation, we can have a lead candidate vaccine within two months. Once we have that it's a race to get it into clinical trials," said John Lewis, CEO of Entos and a Professor at the University of Alberta in Canada.

Lewis said in comparison to a traditional vaccine, DNA-based vaccines hold several advantages.

Nucleic acids are introduced directly into the patient's own cells, causing them to make pieces of the virus--tricking the immune system into mounting a response without the full virus actually being present, the researcher said.

According to the company, the approach is recognised as being easier to move into large-scale manufacturing, offers improved vaccine stability and works without needing an infectious agent.

In the current absence of a vaccine for COVID-19, several companies around the world are mounting efforts to begin similar work.

The first clinical trial using a DNA-based vaccine developed by Moderna Inc.in the US on March 13.

Their approach allows for antibodies to be made in the human trial volunteers against a specific protein on the surface of the coronavirus that lets the virus enter human cells.

The hope is that the antibodies will stop the interaction.

Though this approach is designed to be effective against COVID-19 specifically, Lewis said Entos is taking a different tack.

The company plans to use plasmid DNA to amplify the production of key coronavirus surface and structural proteins with each injection, with an eye to the bigger picture.

"Many of the structural proteins in the virus are pretty well conserved across all the coronaviruses, including SARS and MERS," said Lewis.

"We're hoping that if we express more of the structural proteins that are common to most coronaviruses, we can inhibit the current COVID-19, and also potentially protect against all coronaviruses both past and future," Lewis added.

To move the project forward quickly, the company is seeking financial support from both provincial and federal levels of government.

"We have the opportunity to save a lot of lives, and I think it's really upon us and governments to find solutions for that," Lewis said.

Washington, Jun 27: Facebook has said that it will flag all "newsworthy" posts from politicians that break its rules, including those from President Donald Trump.

Separately, Facebook's stock dropped more than 8 per cent, erasing roughly USD 50 billion from its market valuation, after the European company behind brands such as Ben & Jerry's and Dove announced it would boycott Facebook ads through the end of the year over the amount of hate speech and divisive rhetoric on its platform.

Later in the day, Coca-Cola also announced it joined the boycott for at least 30 days.

CEO Mark Zuckerberg had previously refused to take action against Trump posts suggesting that mail-in ballots will lead to voter fraud, saying that people deserved to hear unfiltered statements from political leaders.

Twitter, by contrast, slapped a "get the facts" label on them.

Until Friday, Trump's posts with identical wording to those labelled on Twitter remained untouched on Facebook, sparking criticism from Trump's opponents as well as current and former Facebook employees.

Now, Facebook is all but certain to face off with the president the next time he posts something the company deems to be violating its rules.

"The policies we're implementing today are designed to address the reality of the challenges our country is facing and how they're showing up across our community," Zuckerberg wrote on his Facebook page announcing the changes.

Zuckerberg said the social network is taking additional steps to counter election-related misinformation.

In particular, the social network will begin adding new labels to all posts about voting that will direct users to authoritative information from state and local election officials.

Facebook is also banning false claims intended to discourage voting, such as stories about federal agents checking legal status at polling places.

The company also said it is increasing its enforcement capacity to remove false claims about local polling conditions in the 72 hours before the US election.

Ethan Zuckerman, director of the Massachusetts Institute of Technology's Center for Civic Media, said the changes are a "reminder of how powerful Facebook may be in terms of spreading disinformation during the upcoming election".

He said the voting labels will depend on how good Facebook's artificial intelligence is at identifying posts to label.

"If every post that mentions voting links, people will start ignoring those links. If they're targeted to posts that say things like 'Police will be checking warrants and unpaid traffic tickets at polls' a classic voter suppression disinfo tactic and clearly mark posts as disinfo, they might be useful," he said.

But Zuckerman noted that Facebook "has a history of trying hard not to alienate right-leaning users, and given how tightly President Trump has aligned himself with voter-suppressing misinfo, it seems likely that Facebook will err on the side of non-intrusive and ignorable labels, which would minimize impact of the campaign."

Earlier in the day, shares of Facebook and Twitter dropped sharply after consumer-product maker Unilever announced a new ad boycott on Facebook, Twitter and Instagram through at least the end of the year.

The European company said it took the move to protest the amount of hate speech online.

Unilever said the polarised atmosphere in the United States ahead of November's presidential election placed responsibility on brands to act.

In addition to the decline in Facebook shares, Twitter ended the day more than 7 per cent lower.

Unilever, which is based in the Netherlands and Britain, joins a raft of other advertisers pulling back from online platforms.

Facebook in particular has been the target of an escalating movement to withhold advertising dollars to pressure it to do more to prevent racist and violent content from being shared on its platform.

"We have decided that starting now through at least the end of the year, we will not run brand advertising in social media newsfeed platforms Facebook, Instagram and Twitter in the U.S.," Unilever said.

"Continuing to advertise on these platforms at this time would not add value to people and society."

Facebook did not immediately respond to a request for comment. On Thursday, Verizon joined others in the Facebook boycott.

Unilever "has enough influence to persuade other brand advertisers to follow its lead," said eMarketer analyst Nicole Perrin.

She noted that Unilever pulled back spending "for longer, on more platforms (including Twitter) and for more expansive reasons" in particular, by citing problems with "divisiveness" as well as hate speech.

Sarah Personette, vice president of global client solutions at Twitter, said the company's "mission is to serve the public conversation and ensure Twitter is a place where people can make human connections, seek and receive authentic and credible information, and express themselves freely and safely."

She added that Twitter is "respectful of our partners' decisions and will continue to work and communicate closely with them during this time."

Washington, Jan 25: US President Donald Trump's legal team was preparing his defence on Saturday after the Democratic prosecutors ended their marathon 24-hour argument to oust him from office during the Senate trial.

In the arguments spread over three days ending on Friday, the Democrat prosecutors from the House of Representatives that had impeached Trump last month, mostly rehashed the testimonies from the hearings before their committees during the investigation and statements in their chamber.

Like the Democrats' arguments, the Trump defence's counter-arguments, also with 24 hours allotted for it, will be mind-numbing monologues for the most part and the real drama will be on a tussle between the two parties on calling witnesses.

The Democrats failed in their repeated attempts on the first day of the trial on January 28 to include calling testimonies from witnesses in the rules of procedure, but they will get another chance to press their case when the defence rests.

There is a tense wait speckled with speculations to see if the Democrats can get four Republicans to defect and vote to call witnesses after failing to sway a mass defection to get the two-thirds majority to convict Trump.

Trump is charged with abuse of power and obstruction of Congress in the trial presided over by Supreme Court Chief Justice John Roberts with the Senators acting as jurors.

As the time allotted for the prosecution wound down on Friday, the leading prosecutor, Adam Schiff, demanded that the Republican-controlled Senate convict and remove Trump from office, because he was an "imminent threat" to the US and the nation could not wait for the election to throw him out.

Schiff, who heads the House Intelligence Committee that investigated Trump, gave them a personal warning: "No matter how close you are to this president, do you think for a moment that if he felt it was in his interest, he wouldn't ask you to be investigated?

Jerry Nadler, the head of the Judicial Committee that framed the charges in the impeachment, called Trump a "dictator".

Instead of a full sitting of eight hours, the defence will present its case for only two to three hours on Saturday in what Trump's lawyer Jay Sekulow called a "trailer (for) coming attractions" in the defence counterarguments.

They will get to use their remaining time next week.

The shorter session starting with fuller presentations next week is partly a concession to media savvy Trump who tweeted that daytime Saturday when his defence was slated is a "death valley" on TV as few viewers would watch a political event at that time.

With Trump certain to be acquitted because the Democrats do not have the two-thirds vote, the impeachment process and the Senate trial are only meant to be an extended media show in their campaign for the November election.

The Democrats want to spiff up the TV spectacle by calling former National Security Adviser John Bolton and Trump's acting Chief of Staff Mick Mulvaney as witnesses.

Trump could exercise his executive privilege to stop them from testifying, in which case they could go to court to compel their appearance at the Senate trial extending its duration by months if not weeks.

The House charged him with obstruction of Congress because he refused to allow some of this staff to testify and release documents requested by the House investigators.

The Republicans, who want a quick end to the trial, can also counter the Democrats' request for witnesses by calling former Vice President Joe Biden and his son, Hunter, to testify in order to embarrass them and their party.

The Bidens are at the root of the abuse of power charges against Trump.

Trump had asked newly-elected Ukrainian President Volodymyr Zelentsky in a July phone call to investigate the Bidens' dealings in his country as a "favour".

Democrats say that this was inviting foreign intervention in US elections because Joe Biden is the leading Democratic party candidate for the nomination to oppose him.

Moreover, they say that he froze about $400 million in Congressionally-approved military aid for pressure Zelentsky to order the probe and this endangered US national security as Ukraine is at war with Russia.

chiff and the other prosecutors said delaying the aid was an attempt at a quid pro quo.

Zelentsky has said that he did not feel pressured by Trump.

Hunter Biden, who was removed from the Navy allegedly due to drug use and had no energy business experience landed a directorship in a Ukrainian gas company with monthly payments reportedly between $50,000 and $83,000 while his father was overseeing Washington's dealings with Kiev.

The former Vice President has publicly admitted that he got the Ukrainian leaders to fire the prosecutor investigating his son's company.

The Republicans have said that the son's appointment was unethical and the father had the prosecutor removed to protect his son's company.

In their arguments, the Democratic prosecutors said there was nothing wrong in Hunter Biden getting the job and his father had the prosecutor dismissed because he was corrupt.

The defence team is expected to assert that Trump withheld the aid because he wanted to be sure that the new government was not corrupt and the aid was released without a probe.

Anticipating the argument, Schiff said that Trump had allowed the aid to go forward only because it became known and his intent still made him guilty.

In another development impinging on the Trump case, a secret recording said to be of the president ordering the firing of Marie Yovanovitch as US ambassador to Ukraine in 2018 has surfaced.

She was one of the witnesses at the House investigations of the charges against Trump.