vaccine efficacy

FILE PHOTO: A healthcare worker receives a dose of COVISHIELD at a hospital in Kolkata

COVID-19: Recommendation of Third Booster Dose Based More on Conjecture Than Data, Say Experts

Earlier this month, an expert panel of the DCGI...

FILE PHOTO: A woman holds a small bottle labeled with a "Coronavirus COVID-19 Vaccine" sticker and a medical syringe in front of displayed China flag in this illustration

China Considers Mixing COVID-19 Vaccines To Boost Protection Rate

Cate Cadell 12/04/2021

Phase III trial in Brazil found Sinovac's vaccine to...

Variant First Detected In South Africa May Evade Protection From Pfizer Vaccine

Maayan Lubell 12/04/2021

The prevalence of the variant was eight times higher...

What You Need To Know About the Covaxin Interim Efficacy Data

Dr Jammi Nagaraj Rao 04/03/2021

News of the reported efficacy is tempered by the...

Vials of a COVID-19 vaccine candidate pictured in Wuhan. Photo: Reuters/File Photo

CanSinoBIO’s COVID-19 Vaccine 65.7% Effective in Global Trials, Pakistan Official Says

Reuters 10/02/2021

In the Pakistani subset, efficacy of the CanSinoBIO vaccine...

Why Do Novavax Vaccine Trials Results in the UK and South Africa Differ?

Shabir A. Madhi 03/02/2021

To start with, conditions in South Africa and the...

Dr. Vinod K. Paul poses for a picture at his office in New Delhi

What Does Treating Covaxin and Covishield ‘Equally’ Entail?

Vasudevan Mukunth 15/01/2021

India's vaccine roll-out programme was initially premised on the...