Expert says it may be available for public use as early as November
Research and development on COVID-19 vaccines in China is progressing
rapidly, and they may be available for public use as early as November,
a senior virologist said.
Five of the nine COVID-19 vaccines that have entered phase 3 clinical
trials globally are being developed in China, and they have produced
satisfying trial results, said Wu Guizhen, chief biosafety expert at the
Chinese Center for Disease Control and Prevention. A vaccine usually
has to complete three phases of trials before gaining market approval.
None of the people who have received candidate COVID-19 vaccines
developed by China for emergency use have exhibited serious side effects
or contracted the novel coronavirus, Wu said.
"It is expected that ordinary people can receive COVID-19 vaccination
in November or December," she said. "We expect the vaccinations will
remain effective for between one and three years."
Faced with a deadly pandemic, countries have been racing against time
to research and develop COVID-19 vaccines. A vaccine can normally take
more than a decade to develop.
Effective vaccines have been seen as a crucial weapon in containing
the pandemic, which has resulted in nearly 30 million cases worldwide.
Although it is effectively under control in China, some experts have
called for vigilance to guard against new outbreaks in winter.
Three candidate COVID-19 vaccines have been approved by Chinese
authorities for emergency use by groups at higher risk of infection,
including some medical workers treating COVID-19 patients and people
going overseas to work.
Zhou Song, chief legal adviser of China National Biotec Group, said
earlier that two vaccines being developed by the company are undergoing
phase 3 clinical trials and have been approved for emergency use. Zhou
said they have proved to be safe and effective in creating an immune
response to the virus.
Gao Fu, director of the China CDC, said at the first Greater Bay Area
Vaccine Summit, which was held in Shenzhen, Guangdong province, over
the weekend that groups at greater risk should be given priority for
immunization with COVID-19 vaccines, including those going to countries
seriously affected by the virus for work, front-line health workers and
elderly people with chronic diseases.
Wu said that with the arrival of fall and winter, peak seasons for
infectious diseases such as flu and COVID-19, vulnerable groups should
be able to receive COVID-19 vaccines once they are available as well as
A technical guide released by the China CDC last week recommended
that groups, including medical workers, employees at nursing homes,
primary school teachers and students, the elderly and people with
chronic diseases should receive flu vaccines.
Senior experts, including Wang Chen, president of the Chinese Academy
of Medical Sciences, have also called for measures to be taken to
encourage the public to get flu vaccines to prevent the disease in fall
and winter to minimize health risks and relieve the burden on medical
institutions in case of outbreaks of COVID-19.
Flu vaccinations have already started in some places in China. In
Gansu province, for example, 60,000 flu vaccines had been administered
as of the end of August. In Beijing, the authorities started buying flu
vaccines for fall and winter in August.