A few useful studies and reports related to the novel Coronavirus pandemic have recently appeared.
The New England Journal of Medicine (NEJM)has a correspondence about cats:
Transmission of SARS-CoV-2 in Domestic Cats
Cats can get infected with the SARS-CoV-2 virus and do replicate it strongly in their respiratory system. But the cats do not get sick and show no symptoms. During the study three infected cats were each put into the same cage as a not-infected cat. They transmitted the disease to the previously non-infected ones. The researchers tested if the viruses the cats produce are still able to grow on human tissues. Unfortunately they are.
This means that a cat which went out of the house and met a cat who's owner has Covid-19 might come back home and infect its own human servant. Household cats may also play a role in the infection chain between household members. Any cat owner who goes into lockdown or is quarantined at home must also quarantine the cat.
The Proceedings of the National Academy of Sciences (PNAS) with a Brief Report about speaking and aerosols:
Highly sensitive laser light scattering observations have revealed that loud speech can emit thousands of oral fluid droplets per second. In a closed, stagnant air environment, they disappear from the window of view with time constants in the range of 8 to 14 min, which corresponds to droplet nuclei of ca. 4 μm diameter, or 12- to 21-μm droplets prior to dehydration. These observations confirm that there is a substantial probability that normal speaking causes airborne virus transmission in confined environments.
In a closed room with multiple persons talking, like a callcenter, office or classroom, everyone should wear a mask. The windows or doors should be open to allow for airflow.
Several people have used this argument: "Casualties from the Covid-19 disease are mostly older people who already have other diseases. They would have died soon anyway. Can't we just let the old ones die now and save the economy?"
A not yet reviewed pre-print study gives an argument against that:
Background: The COVID-19 pandemic is responsible for increasing deaths globally. Most estimates have focused on numbers of deaths, with little direct quantification of years of life lost (YLL) through COVID-19. As most people dying with COVID-19 are older with underlying long-term conditions (LTCs), some have speculated that YLL are low. We aim to estimate YLL attributable to COVID-19, before and after adjustment for number/type of LTCs.
…
Results: Using the standard WHO life tables, YLL per COVID-19 death was 14 for men and 12 for women. After adjustment for number and type of LTCs, the mean YLL was slightly lower, but remained high (13 and 11 years for men and women, respectively).
I quibble a bit with the relatively rough method used in the above study. This should be done more precise though the results will likely be similar. The comments below the study also include some critique. The authors have responded to it with an Addendum. It uses different input data from multiple sources but the average years of life lost are still above 10 per death.
The remdesivir drug by the company Gilead gets hyped as a potential useful drug against the Covid-19 disease. This even after a serious study from China published in Lancet found it useless:
The result:
In this study of adult patients admitted to hospital for severe COVID-19, remdesivir was not associated with statistically significant clinical benefits.
A not completed Adaptive COVID-19 Treatment Trial (ACTT) by the National Institute of Allergy and Infectious Diseases also found that remdesivir does not change the mortality of serious Covid-19 cases. But it found that the drug may lead to a faster recovery. That has led to run on the hard to produce drug and confusion about its distribution.
But the real scandal behind this is that Gilead has a second drug, GS-441524, that is more promising and much easier to produce. STAT published a strong call on Gilead to release it immediately:
Gilead should ditch remdesivir and focus on its simpler and safer ancestor
The authors have the suspicion that Gilead has an ignoble motive for holding back the better drug as its patent will run out sooner:
The attractive profile of GS-441524 from both manufacturing and clinical perspectives raises this question: Why hasn’t Gilead opted to advance this compound to the clinic? We would be remiss for not mentioning patents, and thus profits. The first patent on GS-441524 was issued in 2009, while the first patent for remdesivir was issued in 2017.
…
Given GS-441524’s optimal properties, we — along with the millions of people awaiting an effective treatment for Covid-19 — are left to wonder why Gilead isn’t giving it the same attention it is giving remdesivir. The world can only hope it isn’t for the sake of protecting its intellectual property.
Trump is nearly at war with the scientists. The white House has ditched the CDC reopening advice especially for churches. Axios finds that the U.S. is screwed. I agree with this warning:
"[Rick Bright, the whistleblower who says he was unjustly ousted from his position leading a biodefense unit within the Department of Health and Human Services] also lamented what he sees as the lack of a comprehensive strategy to meet the once-in-a-lifetime threat.
“Our window of opportunity is closing,” he said. “If we fail to develop a national coordinated response, based in science, I fear the pandemic will get far worse and be prolonged, causing unprecedented illness and fatalities.”
Bright, like other scientists, anticipates a second Covid-19 wave during the next cold season. Unless we do whatever we can to keep new infections down after the now receding first wave the second wave will become much more severe than the first one! Here is how that looked during the Spanish flu pandemic.

bigger
Matt Taibbi at Rolling Sones on the gigantic looting that is going on before our eyes:
How the COVID-19 Bailout Gave Wall Street a No-Lose Casino
While ordinary Americans face record unemployment and loss, the COVID-19 bailout has saved the very rich
—
Note: Comments that promote various quacks or hype this or that unproven remedy for Covid-19 will be deleted.