China approves two experimental coronavirus vaccines to enter clinical trials

China approves two experimental coronavirus vaccines to enter clinical trials

One of the remaining three was said to be an experimental vaccine under clinical trial (phase two), having been developed by the Hong Kong-listed CanSino Biologics Inc and the Beijing Institute of Biotechnology.

It is the first Covid-19 vaccine in the world that has entered the second phase of clinical trial, the Xinhua report quoting the World Health Organization as saying.

The first phase of the clinical trial was completed at the end of March, and the second phase started on April 12.

The 108 participants, aged between 18 and 60, were reported to be tested in three groups and given different dosages.

Benjamin Neuman, professor and chair of biological sciences with Texas A&M University, also told the South China Morning Post that the constant mutation of the coronavirus only means the vaccine will need periodic tests and updates.

New Zealand needs to act now to make sure it's not left behind when a successful coronavirus vaccine is created, top Kiwi scientists say. The first person to receive that experimental vaccine last month returned to a Seattle clinic Tuesday for a second dose. India's Serum Institute of India and Bharat Biotech lab are also developing vaccines besides firms in Australia and the UK.

American companies such as Inovio Pharmaceuticals and Moderna are already testing vaccines in human trials, Science Alert reported.

With the Covid-19 virus claiming more than 119,000 lives across the globe, humanity is hoping for an approved vaccine by next year.

With the fight against COVID-19 in most countries focused on keeping health workers safe from infection and imposing strict social distancing measures, the WHO has recommended that governments temporarily pause preventive immunization campaigns, such as those against measles, where there is no active outbreak of a vaccine-preventable disease.

Clinical studies will be conducted by Viroclinics Xplore, which offers myriad pre-clinical tests including toxicology of drugs, antibodies, and antivirals targeting viral infectious diseases.

Experts have been invited to give whole-process direction in the preclinical animal experiments of the vaccines, including acute toxicity experiments, repeated toxicity experiments and immunogenicity experiments, he said.

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