Scientists chart SARS-CoV-2 origin and transmission in Brazil, harboring one of fastest growing COVID-19 epidemics in the world

A team of Brazilian and European scientists has determined the transmission rates and out-of-country origins of predominant SARS-CoV-2 strains currently circulating in Brazil, which harbors one of the fastest growing COVID-19 epidemics in the world. Although the researchers show that non-pharmaceutical interventions initially reduced viral transmission, the continued increases in both cases and deaths in…

Details

New CRISPR C-to-G DNA base editor expands the landscape of precision genome editing

BOSTON — New genome-editing technologies developed by researchers in J. Keith Joung’s laboratory at the Massachusetts General Hospital (MGH) have the potential to help understand disease-associated genetic mutations that are based on C-to-G (cytosine to guanine) single base changes. The new base editors are also designed to minimize unintended («off-target») mutations that could potentially cause…

Details

Researchers find evidence of smallpox in the viking age

The fatal disease smallpox is older and more widespread than scientists so far have proved. A new study by an international team of researchers from the University of Copenhagen and the University of Cambridge shows that the Vikings also suffered from smallpox. Through the ages, the highly infectious disease smallpox has killed hundreds of millions…

Details

Can You Become Reinfected With Covid? It’s Very Unlikely, Experts Say

The anecdotes are alarming. A woman in Los Angeles seemed to recover from Covid-19, but weeks later took a turn for the worse and tested positive again. A New Jersey doctor claimed several patients healed from one bout only to become reinfected with the coronavirus. And another doctor said a second round of illness was…

Details

Pfizer Gets $1.95 Billion to Produce Coronavirus Vaccine by Year’s End

WASHINGTON — As nations around the world race to lock up coronavirus vaccines even before they are ready, the Trump administration on Wednesday made one of the largest investments yet, announcing a nearly $2 billion contract with Pfizer and a German biotechnology company for 100 million doses by December. The contract is part of what…

Details

Lawyers Demand the Military Stop Violating Free Speech on Twitch

ImageJordan Uhl is typing.  On official U.S. Army and Navy esports Twitch channels, members of the military livestream themselves playing video games such as Call of Duty, Fortnite and League of Legends for an audience of thousands. It’s an outreach and recruitment effort — and the military service members also chat with viewers about life…

Details

Covid-19 Patients No Longer Need Tests to End Isolation

Most Americans recovering from Covid-19 can come out of isolation without further testing to show they no longer carry the coronavirus, federal health officials said on Wednesday. Instead, patients may be judged to have recovered if 10 days have passed since they first felt ill; they no longer have any symptoms, such as shortness of…

Details

Tony Elliott, Whose Time Out Clued Readers in, Dies at 73

Tony Elliott, who started the Time Out global publishing empire in his mother’s London kitchen in 1968 with a capital investment of 70 pounds and a simple idea — tell people where they can see the right movie or band, or find a haircut or a falafel — died on July 16 in London. The…

Details

Before the A.D.A., There Was Section 504

Listen to This Article Computer-generated audio recording When the Rehabilitation Act of 1973 was passed to prohibit employment discrimination based on disability, it was supposed to protect disabled people and ensure their rights in the United States. “No otherwise qualified individual with a disability in the United States,” Section 504 of that law reads, “shall,…

Details