Vaccine makers all over the world are racing to develop an effective vaccine against the virus which has already killed more than 925,000 people.

China already has four COVID-19 vaccines in the final stage of clinical trials and have given three of those drugs to essential workers under an emergency use programme inaugurated in July.

Guizhen Wu, a top official of the Chinese Centre for Disease Control and Prevention, said the coronavirus vaccines being developed in China may be ready for use by the general public as the phase three clinical trials were going as planned.

Wu, in an interview with state TV, revealed she also contracted Coronavirus but she has experienced no abnormal symptoms in recent months after taking an experimental vaccine herself in April.