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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.

Washington, May 30: US President Donald Trump on Friday said that America is terminating its relationship with the World Health Organization as he blamed it and China for the deaths and destruction caused by the COVID-19 pandemic across the globe.

Stating that the funding of the WHO would now be diverted to other global public health organisations, Trump announced a series of decisions against China including issuing proclamation to deny entry to certain Chinese nationals and tightening of regulations against Chinese investments in America.

"Because they (WHO) have failed to make the requested and greatly needed reforms, we will be today terminating our relationship with the World Health Organization and redirecting those funds to other worldwide and deserving urgent global public health needs, Trump said.

May 14: The UN’s children agency has warned that an additional 6,000 children could die daily from preventable causes over the next six months as the COVID-19 pandemic weakens the health systems and disrupts routine services, the first time that the number of children dying before their fifth birthday could increase worldwide in decades.

As the coronavirus outbreak enters its fifth month, the UN Children’s Fund (UNICEF) requested USD 1.6 billion to support its humanitarian response for children impacted by the pandemic.

The health crisis is “quickly becoming a child rights crisis. And without urgent action, a further 6,000 under-fives could die each day,” it said.

With a dramatic increase in the costs of supplies, shipment and care, the agency appeal is up from a USD 651.6 million request made in late March – reflecting the devastating socioeconomic consequences of the disease and families’ rising needs.

"Schools are closed, parents are out of work and families are under strain," UNICEF Executive Director Henrietta Fore said on Tuesday.

 “As we reimagine what a post-COVID world would look like, these funds will help us respond to the crisis, recover from its aftermath, and protect children from its knock-on effects.”

The estimate of the 6,000 additional deaths from preventable causes over the next six months is based on an analysis by researchers from the Johns Hopkins Bloomberg School of Public Health, published on Wednesday in the Lancet Global Health Journal.

UNICEF said it was based on the worst of three scenarios analysing 118 low and middle-income countries, estimating that an additional 1.2 million deaths could occur in just the next six months, due to reductions in routine health coverage, and an increase in so-called child wasting.

Around 56,700 more maternal deaths could also occur in just six months, in addition to the 144,000 likely deaths across the same group of countries. The worst case scenario, of children dying before their fifth birthdays, would represent an increase "for the first time in decades,” Fore said.

"We must not let mothers and children become collateral damage in the fight against the virus. And we must not let decades of progress on reducing preventable child and maternal deaths, be lost,” she said.

Access to essential services, like routine immunisation, has already been compromised for hundreds of millions of children and threatens a significant increase in child mortality.

According to a UNICEF analysis, some 77 per cent of children under the age of 18 worldwide are living in one of 132 countries with COVID-19 movement restrictions.

The UN agency also spotlighted that the mental health and psychosocial impact of restricted movement, school closures and subsequent isolation are likely to intensify already high levels of stress, especially for vulnerable youth.

At the same time, they maintained that children living under restricted movement and socio-economic decline are in greater jeopardy of violence and neglect. Girls and women are at increased risk of sexual and gender-based violence.

The UNICEF pointed out that in many cases, refugee, migrant and internally displaced children are experiencing reduced access to protection and services while being increasingly exposed to xenophobia and discrimination.

“We have seen what the pandemic is doing to countries with developed health systems and we are concerned about what it would do to countries with weaker systems and fewer available resources,” Fore said.

In countries suffering from humanitarian crises, UNICEF is working to prevent transmission and mitigate the collateral impacts on children, women and vulnerable populations – with a special focus on access to health, nutrition, water and sanitation, education and protection.

To date, the UN agency said it has received USD 215 million to support its pandemic response, and additional funding will help build upon already-achieved results.

Within its response, UNICEF has reached more than 1.67 billion people with COVID-19 prevention messaging around hand washing and cough and sneeze hygiene; over 12 million with critical water, sanitation and hygiene supplies; and nearly 80 million children with distance or home-based learning.

The UN agency has also shipped to 52 countries, more than 6.6 million gloves, 1.3 million surgical masks, 428,000 N95 respirators and 34,500 COVID-19 diagnostic tests, among other items.