Florida, Texas and Arizona -- states that aggressively embraced Trump's demands to get the economy open -- are heading into what one expert described as a viral threat approaching "apocalyptic" levels.
Some are rethinking their strategies. In a stunning turnaround, Texas Governor Greg Abbott yesterday ordered most Texans to wear face coverings in public. This is the same man who, just two months ago, issued an executive order expressly banning local jurisdictions from fining those who refuse to wear a mask in public.
YOU ASKED. WE ANSWERED
Q: If the antibodies may or may not offer long-term immunity, how would a vaccine help?
A: In some cases, a vaccine might give stronger protection than antibodies produced after being infected, epidemiologist Dr. Larry Brilliant said. "There are actually six other coronaviruses -- MERS and SARS and four other viruses that create the common cold. They don't seem to do very well at creating long-term immunity," Brilliant said.
"But we need to find out whether we can create a vaccine that creates more immunity [to the novel coronavirus] than the disease does. And that's not so wild. Many of the vaccines that we've made in history are actually stronger than the virus is itself at creating immunity."
WHAT'S IMPORTANT TODAY
Here's what happened when the US and Brazil lifted lockdowns
In contrast, three of the four countries with the world's highest death tolls and case counts -- the US, Brazil and India -- have either never properly shut down or started reopening before their case counts began to drop.
New mutation of the virus is spreading faster
The study, published in the journal Cell, says the mutation affects the spike protein -- the structure the virus uses to get into the cells it infects. Researchers are now checking to see whether this affects whether the virus can be controlled by a vaccine.
'Sending the population to the slaughterhouse'
Restaurants, bars and gyms in Rio were allowed to reopen yesterday, much to the dismay of health experts. "Governors and mayors are sending the population to the slaughterhouse with the prerogative of an economic recovery," said Domingos Alves, a computer modeling expert from the Covid-19 Brasil group, which brings together scientists from several Brazilian universities.
Brazil is the second worst hit country after the US. It has recorded nearly 1.5 million cases. More than 61,800 people have died.
Remember hydroxychloroquine? A new study suggests it may actually help
But a team at Henry Ford Health System in Michigan said yesterday its study of 2,541 hospitalized patients found that those given hydroxychloroquine were much less likely to die. The difference? "What we think was important in ours ... is that patients were treated early. For hydroxychloroquine to have a benefit, it needs to begin before the patients begin to suffer some of the severe immune reactions that patients can have with Covid," said Dr. Marcus Zervos, the division head of infectious disease for Henry Ford Health System.
Singapore got coronavirus under control. Then dengue struck
Climate change and rapid urbanization have made dengue outbreaks bigger in the past decades. But experts say the coronavirus lockdown measures might have worsened the outbreak this year. "When more people stay at home all the days, there could be more residential mosquito breeding and more opportunities for 'blood meals'," said Luo Dahai, associate professor of Infection and Immunity at Nanyang Technological University.
ON OUR RADAR
"Sometimes I wonder how different things would've been if the virus was bigger and actually visible to the naked eye ... if we could see it flying out of the mouths and noses of those infected. Tethered by strings around six feet long. If we saw that, would we behave differently?" -- Dr. Sanjay Gupta