By Ewen Callaway, Nature magazine on May 21, 2021 Countries with fluctuating supplies of COVID-19 vaccines could benefit from using different vaccines for the first and second dose. Credit: Christof Stache Getty Images Vaccinating people with both the Oxford–AstraZeneca and Pfizer–BioNTech COVID-19 vaccines produces a potent immune response against the virus SARS-CoV-2, researchers conducting a study in Spain have found. Preliminary...
If there’s one take-home message for the general public about the coronavirus vaccines approved in the US, it’s that they are remarkably effective. But Michigan State University’s Morteza Mahmoudi is raising awareness about an important subtlety: The vaccines developed by Moderna and Pfizer-BioNTech appear to work slightly better for males than for females. Both vaccines...
by Tara Hurst, The Conversation Credit: Unsplash/CC0 Public Domain The development of several COVID vaccines in less than a year has given us all hope of a release from the pandemic. Now the goal has shifted to ensuring widespread vaccine coverage is achieved as quickly as possible around the globe. However, it is unlikely that any of...
by Sarah Avery, Duke University School of Nursing Credit: Unsplash/CC0 Public Domain Two different COVID vaccines are predicted to be protective against a rapidly spreading variant of the SARS-Cov-2 virus that arose in California, reports a Duke Health led research team. However, the vaccines were found to be less effective against a variant that first emerged...
By Melinda Wenner Moyer on March 30, 2021 Credit: Inna Vlasova Getty Images As adults around the world scramble to get vaccinated against COVID-19, pharmaceutical companies are turning their attention toward one quarter of the population that still has no available shots: kids. Several pharmaceutical companies are doing clinical trials in adolescents or young children. Pfizer was already testing its vaccine in...
by Kylie Quinn, The Conversation There are three situations where we may need a boost: to build immunity quickly, to re-build immunity that has waned, or to re-focus immunity on new viral variants. Author provided The COVID vaccine rollout is now underway in Australia and around the world. It’s incredible we’ve been able to develop and...
Heidi Ledford A COVID-19 vaccination centre in Dhaka.Credit: Mohammad Ponir Hossain/Reuters/Alamy Yusuff Adebayo Adebisi knows that a vaccine that offers 70% protection against COVID-19 could be a valuable tool against the coronavirus pandemic in Nigeria — especially if that vaccine is cheap and doesn’t have to be stored at extremely cold temperatures. But what if...
by Antonio Regaladoarchive page February 5, 2021 SELMAN DESIGNhide On December 23, as part of a publicity push to encourage people to get vaccinated against covid-19, the University of Pennsylvania released footage of two researchers who developed the science behind the shots, Katalin Karikó and Drew Weissman, getting their inoculations. The vaccines, icy concoctions of fatty spheres and genetic...
Heidi Ledford A trial will test a two-shot vaccine regimen that uses two types of COVID vaccine.Credit: Ben Hasty/MediaNews Group/Reading Eagle/Getty Researchers in the United Kingdom have launched a study that will mix and match two COVID-19 vaccines in a bid to ease the daunting logistics of immunizing millions of people — and potentially boost immune...
Ewen Callaway & Heidi Ledford People await coronavirus vaccines at a hospital in Glasgow, UK.Credit: Jeff J. Mitchell/Getty As evidence grows that new variants of the SARS-CoV-2 coronavirus can evade immunity produced by vaccines or previous infections, scientists are exploring the idea of redesigning the vaccines currently being rolled out worldwide. Researchers are still debating whether...
