How COVID-19 kills

COVID-19, the disease caused by coronavirus SARS-Cov-2, has infected over 4 million people in 212 countries, of whom at least 272,000 have died. The ongoing economic and social impact of the pandemic is staggering, but despite a daily flood of news on the disease, few laypeople know that paradoxically, COVID-19 mostly kills through an overreaction…

Mucus breakthrough could help patients breathe easy

At a glance Researchers have discovered the reason why the excessive amounts of mucus produced by patients with respiratory illnesses is thicker than usual. Mucus viscosity is driven by proteins called ‘trefoil factors’ that bind to ‘mucin glycoproteins’ which are very long protein strands coated with unique sugar molecules. Understanding these mechanisms could help to…

A Flower Shop Reinvented to Reopen

OAKLAND, Calif. — Elizabeth Wardman was driving to San Francisco’s wholesale flower market last week when she heard on the radio that California was going to allow florists to reopen for Mother’s Day as part of an easing of coronavirus lockdown rules. By the time she got to the market at 6 a.m., the parking…

Uber Said to Be in Talks to Acquire Grubhub

SAN FRANCISCO — Uber is in talks to acquire Grubhub, said three people with knowledge of the discussions, aiming to create one giant player in food delivery as more people turn toward those services in the coronavirus pandemic. Uber recently approached Grubhub with a potential all-stock takeover bid, said two of the people, who spoke…