Obama most admired foreign leader in India: Poll

May 30: Warning of the tightrope walk ahead as governments battle the coronavirus crisis, Nobel laureate Peter Charles Doherty has expressed concern about densely populated countries such as India relaxing lockdown norms while also describing a complete shutdown as “an economic and social impossibility”.

The Australian immunologist, who cautioned that the number of COVID-19 cases will rise in the coming days, said the earliest time frame for an effective vaccine “going into large numbers of people” is nine to 12 months.

"If all goes well with testing, we could know if some of the candidate vaccines are both safe and effective as early as September/October. Then, rolling a vaccine out will depend on the type of product and how quickly it can be made, put in vials and so forth," Doherty told PTI in an email interview from Melbourne.

The novel coronavirus, he added, does not change fast like influenza and, from what is known so far, “the same vaccine should work everywhere”.

Doherty, who is with the Department of Microbiology and Immunology at the Doherty Institute, University of Melbourne, won the Nobel Prize for Medicine in 1996 for his discovery of how the body’s immune system distinguishes virus-infected cells from normal ones.

Discussing the lockdown, he said, "If it was purely a matter of hard science, everywhere should stay locked down. But that’s pretty much an economic and social impossibility.”

The expectation, he said, is the numbers will rise and limiting spread will depend on people acting responsibly and the capacity for rapid response and extensive contact testing.

“And in a densely populated country like India I think that it will be very difficult," the scientist said.

Several countries, including India, began relaxing lockdown norms in mid-May despite the WHO’s warning about a second wave. India’s lockdown began on March 25 and has since been extended. The fourth phase ends on Sunday.

Asked whether there are any alternatives to a lockdown, the 79-year-old said, "There is no other option other than closing borders. South Korea, for example, conducted massive, intensive testing and contact tracing in a wealthy country with a very disciplined population. Otherwise, not till we have effective vaccines."

He added that he personally doesn’t see the point of closing borders for people coming in if there’s already a high incidence of disease in the community, “unless it’s to avoid the need to care for them and use scarce hospital beds".

According to Doherty, the coronavirus "is a new virus which has come straight out of nature".

“It (the virus) has moved so rapidly across the world because of people travelling on international planes as well as tourist ships," he added.

The immunologist also warned against the use of hydroxychloroquine to treat COVID-19, and said current and planned trials of the anti-malaria drug should be stopped.

“My understanding is that the use of the drug in severe disease is definitely contra-indicated, but it’s not yet clear whether, if taken under medical supervision, it could have some useful effect if taken early on, or as a preventive. Those trials just haven’t been done properly," Doherty noted.

The Indian Council of Medical Research (ICMR) has backed the use of hydroxychloroquine as a preventive against COVID-19 even after the WHO suspended clinical trials of the drug citing safety concerns.

Asked whether plasma therapy can be an effective treatment for COVID-19, Doherty said, "We lack good properly controlled trials but, especially if the plasma has been tested for antibody levels and there’s evidence of good activity, it could be helpful. If I had the disease and was offered plasma therapy I would certainly accept, but I would not take hydroxychloroquine."

Doherty is also very optimistic about herd immunity developing against the SARS-CoV-2 infection.

"We think that (herd immunity) will cut in and have an obvious effect when, say, 60 per cent of people have been infected. Best hope is to boost herd immunity with a vaccine," he stated.

Herd immunity is a form of indirect protection from infectious disease that occurs when a large percentage of a population has become immune to an infection, whether through vaccination or previous infections.

The number of COVID-19 cases have crossed 5.9 million and the fatalities 3,65,000, according to the Johns Hopkins University on Saturday. 

In India, the death toll has risen to 4,971 and the number of cases to 1,73,763, according to the Union Health Ministry on Saturday.

Several states, including Bihar, Uttar Pradesh, Madhya Pradesh, Jharkhand and Chhattisgarh, have reported a rise in number since lockdown norms were relaxed in early May and migrant workers reached home.

In Uttar Pradesh, for instance, the number of infections rose from around 3,000 on May 4 to 6,532 on May 26. Similarly, Bihar’s numbers increased from around 500 to over 2,700 in the period.

Paris, Jun 29: More than half a million people have been killed by the novel coronavirus, nearly two thirds of them in the United States and Europe, according to an news agency tally at 2200 GMT Sunday based on official sources.

The official death count for the disease now stands at 500,390 deaths from 10,099,576 cases recorded worldwide. The United States has suffered the highest death count (125,747), followed by Brazil (57,622) and the United Kingdom (43,550).

The tallies, using data collected by AFP from national authorities and information from the World Health Organization (WHO), probably reflect only a fraction of the actual number of infections.

Many countries are testing only the most serious cases.

May 12: Gunmen stormed a hospital on Tuesday in an ongoing attack in the Afghan capital Kabul, as a suicide blast killed 15 people at a funeral in the country's restive east.

Special forces rescued 80 people including mothers and babies from the Kabul hospital after three gunmen launched a morning assault, killing at least four people, the interior ministry said in a statement.

Heavily armed forces were seen carrying babies wrapped in blankets away from the scene, as the clearance operation continued.

The facility, which has a large maternity ward, is located in the west of the city, home to the capital's minority Shiite Hazara community -- a frequent target of Sunni militants from the Islamic State group.

The flare-up in violence comes as Afghanistan grapples with myriad crises including a rise in militant operations across the country and a surge in coronavirus infections.

A paediatrician who fled the hospital told AFP he heard a loud explosion at the entrance of the building.

"The hospital was full of patients and doctors, there was total panic inside," he said, asking not to be named.

The maternity services at the hospital are supported by humanitarian organisation Doctors Without Borders (MSF).

"Hospitals and health workers must not be attacked. We call on all sides to stop attacking hospitals and health workers," said deputy health minister in the city, Waheed Majroh.

Around an hour later, a suicide bomber killed at least 15 people at the funeral of a local police commander in the country's eastern Nangarhar province, according to provincial spokesman Ataullah Khogyani.

The attacker detonated his explosives in the middle of the ceremony.

Zaher Adel, spokesman for the government hospital in Jalalabad, earlier said 12 bodies had arrived from the blast site and more than 50 people were being treated for injuries.

Amir Mohammad, who was wounded in the blast, said thousands of people had gathered for the funeral, an event which often draws huge crowds in Afghanistan.

The violence comes just a day after four roadside bombs exploded in a northern district of Kabul, wounding four civilians including a child.

The bombings were later claimed by the Islamic State group, according to the SITE intelligence group.

They were just the latest in a string of IS attacks on the capital.

In March, at least 25 people were killed by a gunman at a Sikh temple in Kabul, which was later claimed by the group.

IS is also responsible for an infamous attack in March 2017 on one of the country's largest hospitals, when gunmen disguised as doctors stormed the Kabul building and killed dozens.

In recent months, the jihadist group has suffered mounting setbacks after being hunted by US and Afghan forces as well as Taliban offensives targeting their fighters, but it still retains the ability to launch major assaults on urban centres.

The Taliban have largely refrained from launching large attacks on Afghan cities since February when they signed a landmark withdrawal deal with the US meant to pave the way for peace talks with the Kabul government.

Under the agreement, the Taliban promised not to target forces from the US-led coalition, but made no such pledge toward Afghan troops and have stepped up attacks in the provinces.

The Taliban have denied involvement in both of Tuesday's attacks.