Sinovac is only 50.4% effective : Brazil data

▴ Sinovac is only 50.4% effective : Brazil data
Coronavac from China's Sinovac may not go to a vaccine for masses

A coronavirus vaccine developed by China's Sinovac has been found to be 50.4% effective in Brazilian clinical trials, according to the latest results released by researchers.

It shows the vaccine is significantly less effective than previous data suggested - barely over the 50% needed for regulatory approval. The Chinese vaccine is one of two that the Brazilian government has lined up.

Brazil has been one of the countries worst affected by Covid-19.

Sinovac, a Beijing-based biopharmaceutical company, is behind CoronaVac, an inactivated vaccine. It works by using killed viral particles to expose the body's immune system to the virus without risking a serious disease response.

Several countries, including Indonesia, Turkey and Singapore, have placed orders for the vaccine.

Last week researchers at the Butantan Institute, which has been conducting the trials in Brazil, announced that the vaccine had a 78% efficacy against "mild-to-severe" Covid-19 cases.

But on Tuesday they revealed that calculations for this figure did not include data from a group of "very mild infections" among those who received the vaccine that did not require clinical assistance.

With the inclusion of this data, the efficacy rate is now 50.4%, said, researchers.

But Butantan stressed that the vaccine is 78% effective in preventing mild cases that needed treatment and 100% effective in staving off moderate to serious cases.

The Sinovac trials have yielded different results across different countries.

Last month Turkish researchers said the Sinovac vaccine was 91.25% effective, while Indonesia, which rolled out its mass vaccination programme on Wednesday, said it was 65.3% effective. Both were interim results from late-stage trials.

https://www.bbc.com/news/world-latin-america-55642648 

Tags : #Sinovac #China #Coronavac #Brazil #Indonesia #Turkey #Singapore #ButantanInstitute

About the Author


Team Medicircle

Related Stories

Loading Please wait...

-Advertisements-




Trending Now

Exploring the Link Between Covid-19 Vaccination and Sudden Cardiac Arrests: ICMR StudyNovember 22, 2023
Powering the Future: China's Biodegradable Wireless System for Bioelectronic InnovationNovember 22, 2023
IMS BHU Pioneers Advanced Cardiac Care: Unveiling Cutting-Edge Technologies for Precise DiagnosisNovember 18, 2023
Inito's $6 Million Boost: Transforming Women's Health with AI-Backed Fertility MonitoringNovember 18, 2023
Madras High Court Advocates for Equality: PG Medical Students to Receive Incentive Marks for COVID-19 DutyNovember 18, 2023
Next-Gen Healthcare: CarePods and AI Redefine the Patient ExperienceNovember 17, 2023
Air Quality Crisis: Alarming Rise in Premature Births Linked to Air Quality in Begusarai, BiharNovember 17, 2023
Limerick Contest-2023: A Celebration of Wit and PoetryNovember 17, 2023
IIIT-Hyderabad among top 100 institutions for 5G Use Case LabNovember 17, 2023
Powerful, motivating and inspiring talks marked TEDx Hyderabad Women 2023 which was held with the theme "Two Steps ForwardNovember 17, 2023
Speaking the Diagnosis: How AI in Voice Analysis Is Revolutionizing Diabetes DetectionNovember 17, 2023
FDA Approves Zepbound: A New Medication for Weight Loss by Eli LillyNovember 17, 2023
CoverSelf Raises $8.2 Million in Seed Funding to Revolutionize Healthcare Claims with Innovative Fintech PlatformNovember 16, 2023
From Miracle to Medic: The Extraordinary Journey of India's First Paediatric Liver Transplant RecipientNovember 16, 2023
Combatting Chikungunya: Valneva's Chikungunya Vaccine Cleared by USFDA, Eyes India LaunchNovember 16, 2023
Global Corporate Summit 2023 with the theme Unlocking Opportunities in a Dynamic World heldNovember 16, 2023
2nd IHub-Data Mobility Summit heldNovember 16, 2023
Revolutionary AI-powered technology detects multiple abdominal pathologies simultaneouslyNovember 16, 2023
1 Out of 3 Stroke Patients Suffer Long-Term Health Complications, Says NeurologistNovember 16, 2023
Amrita Hospital, Kochi, Launches App for People with Swallowing DifficultiesNovember 15, 2023