• Thursday, Feb 25, 2021
  • Last Update : 03:52 pm

Sinovac Vaccine: Data show 100% effectiveness in preventing severe cases

  • Published at 11:07 pm January 14th, 2021
coronavirus vaccineChina
A booth displaying a coronavirus vaccine candidate from Sinovac Biotech Ltd is seen at the 2020 China International Fair for Trade in Services (CIFTIS), following the COVID-19 outbreak, in Beijing, China on September 5, 2020 Reuters

It has an overall efficacy of 50.4%, according to results of Brazil's final-stage trials released by researchers

The Chinese company Sinovac's Covid-19 vaccine is 100% effective in preventing severe and moderate infections, 77.96% effective in preventing mild cases and has an overall efficacy of 50.4%, according to the results of Brazil's final-stage trials released by researchers.

Experts said the result was acceptable keeping in mind that almost all participants in Brazil were high-risk medical workers, reports The Star of Malaysia. 

The 77.96% efficacy in mild-cases means that the vaccine can reduce 78% of people from needing hospitalization, according to vaccine experts. 

"The vaccine was able to 100% prevent severe illness in such a high-risk population, and effectively control the morbidity, and protect at least 50% of people from infection, which is good enough," Wang Guiqiang, director of the Infectious Disease Department at Peking University First Hospital, told the Global Times of China on Tuesday.

"Currently, the manufacturer [CoronaVac] requires a 0-14 vaccination doses program [second dose 14 days after the first one], but this probably cannot bring the highest level of antibody which then partly lowered the efficacy result. That's why some manufacturers ask for a 0-21 vaccination program. But overall, its protective effects in such a high-risk population is good enough," Wang emphasized.

The most common systemic effects were headache and myalgia and even those were mild and did not affect the participants' daily routine.


Also Read - Health Minister: Covid-19 vaccination policy for private sector in the offing


Notably, there were no severe events associated with the Sinovac vaccine.

Dimas Covas, director of the Butantan Institute, which cooperates with Sinovac on the Brazil trials, during a news conference on Tuesday said adverse events were very rare.

A higher efficacy will be seen in community use, he remarked. 

The Sinovac vaccine will have a very high effectiveness among the general population, he added. 

The authorities concerned have been conducting phase III clinical trials of Sinovac’s vaccine in Brazil, Indonesia and Turkey. These countries have designed different clinical plans based on their own domestic conditions. 

Vaccines from the same batch and immunization schedule achieved different results of efficacy — 91.3% in Turkey; 100% protection against severe symptoms and 78% for mild cases in Brazil; and 65.3% in Turkey, which is normal and shows objectivity of clinical trials, according to a document the Global Times obtained from Sinovac.

Despite the discrepancies, the general inference is that the vaccine is protective, particularly in preventing medium and severe symptoms, as mentioned in the Sinovac document.

69
Facebook 67
blogger sharing button blogger
buffer sharing button buffer
diaspora sharing button diaspora
digg sharing button digg
douban sharing button douban
email sharing button email
evernote sharing button evernote
flipboard sharing button flipboard
pocket sharing button getpocket
github sharing button github
gmail sharing button gmail
googlebookmarks sharing button googlebookmarks
hackernews sharing button hackernews
instapaper sharing button instapaper
line sharing button line
linkedin sharing button linkedin
livejournal sharing button livejournal
mailru sharing button mailru
medium sharing button medium
meneame sharing button meneame
messenger sharing button messenger
odnoklassniki sharing button odnoklassniki
pinterest sharing button pinterest
print sharing button print
qzone sharing button qzone
reddit sharing button reddit
refind sharing button refind
renren sharing button renren
skype sharing button skype
snapchat sharing button snapchat
surfingbird sharing button surfingbird
telegram sharing button telegram
tumblr sharing button tumblr
twitter sharing button twitter
vk sharing button vk
wechat sharing button wechat
weibo sharing button weibo
whatsapp sharing button whatsapp
wordpress sharing button wordpress
xing sharing button xing
yahoomail sharing button yahoomail