Why do new variants of Covid-19 keep appearing? Laura Foster explains India has classified a new variant of the coronavirus first identified in Europe as a "variant of concern", but it's too early to tell whether it poses a significant threat. India's health ministry says studies showed that the so-called Delta plus variant - also known [...]
LONDON — Since the start of the coronavirus pandemic, the U.S. has been keeping a close eye on the U.K. From its initial response to Covid-19 (questioned by many), to its much-praised immunization program and world-class research, all have helped inform how the U.S. — which faced its first major Covid outbreak after Britain [...]
As Delta variants has become the new cause for concern across the world, Pfizer says its vaccine is effective against Delta, first reported in India. Pfizer which is in the final stages of striking an agreement with India claimed on Thursday that its vaccine is highly effective against the Delta variant of Covid-19, the [...]
Amid bemusement from scientists at the deluge of often undeserved criticism, the Guardian pieces together the story behind the vaccine’s successes and failures. n January 2020, when most of the world slept soundly in ignorance of the pandemic coming its way, a group of scientists at Oxford University got to work on a vaccine [...]
The Pfizer and Moderna vaccines are set to become the mainstay of Australia’s COVID-19 vaccine rollout as the year progresses, according to the latest government projections released this week. From September, up to an average 1.3m doses of the Pfizer vaccine plus another 125,000 doses of the yet-to-be approved Moderna vaccine are expected to be [...]
The brains of people who died from COVID-19 were remarkably similar to the brains of people who die from neurodegenerative diseases such as Alzheimer's and Parkinson's, showing inflammation and disrupted circuitry, researchers report. "The brains of patients who died from severe COVID-19 showed profound molecular markers of inflammation, even though those patients didn't have [...]
Nearly 4,000 Massachusetts residents who were fully vaccinated against COVID-19 have tested positive for the virus. These so-called 'breakthrough' cases occur when people contract the disease 14 days or more after receiving their second dose of the Pfizer-BioNTech or Moderna vaccine or the Johnson & Johnson one-shot jab, and which officials say are not surprising. With more than 3.7 million [...]
The rare lung disease is so complicated that its acronym is difficult to pronounce. However, for infants who were unfortunate enough to be born with this disorder, the outcome is generally fatal. Left: normal mouse lung tissue showing a healthy density of blood vessels. Middle: example of abnormal, diseased tissue with reduced STAT3 activation. [...]
Researchers analyzed data on three variants of concern and found that viral loads were higher and infection lasted longer for the B.1.1.7 variant. They all were more infectious than the original strain, and transmissibility also depended on population demographics. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has evolved since it first emerged in [...]
A higher-than-expected number of young men have experienced heart inflammation after their second dose of the mRNA COVID-19 shots from Pfizer/BioNTech and Moderna, according to data from two vaccine safety monitoring systems, the U.S. Centers for Disease Control and Prevention (CDC) said on Thursday. The CDC and other health regulators have been investigating heart inflammation [...]
