First Covid-19 Reinfection Has Been Documented

phalse phace writes: Researchers in Hong Kong on Monday reported what appears to be the first confirmed case of Covid-19 reinfection, a 33-year-old man who was first infected by SARS-CoV-2 in late March and then, four and a half months later, seemingly contracted the virus again while traveling in Europe. The case raises questions about the durability of immune protection from…

Scientists Slow Down and Steer Light With Resonant Nanoantennas

New submitter HotSyncer shares a report from Phys.Org: [I]n a paper published on Aug. 17, in Nature Nanotechnology, Stanford scientists demonstrate a new approach to slow light significantly, much like an echo chamber holds onto sound, and to direct it at will. Researchers in the lab of Jennifer Dionne, associate professor of materials science and engineering at Stanford, structured ultrathin silicon…

‘Covid-19 Is Creating a Wave of Heart Disease’

Haider Warraich, a cardiologist, writing for the New York Times: An intriguing new study from Germany offers a glimpse into how SARS-CoV-2 affects the heart. Researchers studied 100 individuals, with a median age of just 49, who had recovered from Covid-19. Most were asymptomatic or had mild symptoms. An average of two months after they received the diagnosis, the researchers performed…

These dogs are trained to sniff out the coronavirus

Scientists have been working with professional trainers in South Australia, Victoria and New South Wales to train dogs to sniff out Covid-19. Most of the dogs have a 100% success rate. Source: https://earthsky.org/human-world/dogs-trained-to-smell-detect-coronavirus-covid19…

Does coronavirus linger in the body?

Some viruses can hide out in the body and reemerge at later times. Which viruses do this, and can the new coronavirus do this too? Source: https://earthsky.org/human-world/does-coronavirus-linger-in-body-immune-system-covid…

CDC: Most COVID-19 Cases In New York City In March Traced To Europe

schwit1 shares a report from UPI: Up to 75% of the coronavirus strains circulating in New York City in early March shared genetic similarities with those seen in Europe and other areas of North America, according to an analysis published Thursday by the U.S. Centers for Disease Control and Prevention. The findings are significant, given that they are based on samples…