A report states that leading health experts have warned that scientists may not be able to develop a vaccine against coronavirus disease (Covid-19), saying that it has already occurred in cases of HIV and dengue is.
More than 100 vaccines are currently under pre-clinical trials and a couple of them have entered the human testing phase – from a chimpanzee virus at the University of Oxford in England to a different vaccine manufactured by Moderna in the US.
Professor of Global Health at Imperial College London, Dr. “There are some viruses against which we still don’t have vaccines,” David Nabarro was quoted as saying by CNN on Sunday.
“We cannot make a complete assumption that a vaccine will show up at all, or if it does show up, will it pass all tests of efficacy and safety,” Nabarro, as a special envoy for the World Health Organization Also works in (WHO) on Covid-19, said.
Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, is among those who say a vaccine will arrive within 18 months to a year, while others have said it may take longer.
Most experts are confident that a Covid-19 vaccine will eventually be developed because unlike previous diseases like HIV and malaria, the coronavirus does not mutate rapidly.
However, Nabarro stated that the process of developing the vaccine is slow and painful.
“You have high expectations, and then your expectations have fallen.” We are working with biological systems, we are not working with mechanical systems. A lot depends on how the body reacts.
“We have never been vaccinated for 18 months in a month. This does not mean impossible, but it will be quite a heroic achievement. We need plan A and a plan B,” Dr. Peter Hotez, dean of the National School of Tropical Medicine at Baylor College of Medicine in Houston, told CNN.
A vaccine candidate for Covid-19 has been identified by researchers at the Oxford Vaccine Group and Oxford’s Jenner Institute. The potential upcoming vaccine, ChAdOx1 nCoV-19, is based on an adenovirus vaccine vector and the SARS-CoV-2 spike protein.
According to the WHO, out of a total of 102 candidate vaccines in the race, eight leading vaccines are in the human testing phase.
Numerous treatments are being tested for Kovid-19 and scientists are also looking at experimental anti-Ebola drug remdesivir and blood plasma treatments are also being explored. Experts have said that hydroxychloroquine, touted by US President Donald Trump as a potential “game-changer”, has been found not to work on very ill patients.
Till then, Nabarro said preparing ourselves will be an option till a vaccine against Covid-19 is developed. Speaking to CNN, Nabarro said, “All societies everywhere must place themselves in a danger where they can defend against coronaviruses as a constant threat, and with the virus, about social life and economic activities I can know.