Tulane Outbreak Daily – September 4, 2020

Featured Headlines

Coronavirus reinfections: three questions scientists are asking – Nature

Second infections raise questions about long-term immunity to COVID-19 and the prospects for a vaccine.

Fauci Warns Seven Midwest States to Be on Alert Over Labor Day – Bloomberg

Anthony Fauci, the U.S.’s top infectious disease expert, said that seven states that have seen upticks in Covid-19 cases should be particularly vigilant over the Labor Day holiday, and warned that if Americans are “careless” there could be another jump in cases this fall.

Is India missing COVID-19 deaths? – The Lancet

Experts have questioned shortcomings and lack of clarity in vital registration, testing practices, and classification of COVID-19 deaths. Patralekha Chatterjee reports from New Delhi. India has had 3·6 million cases of COVID-19, the third most in the world after the USA and Brazil, with 65 288 officially confirmed deaths from the disease as of Sept 1, 2020.

Coronavirus Vaccine Roundup, Early September – The Scientist

This class uses some other infectious virus, but with its original genetic material removed. In its place goes genetic instructions to make coronavirus proteins, and when your infected cells do that, these proteins will set off an immune response. Note that this is different than being infected with a “real” virus, whose instructions are (naturally enough) to produce more virus, which go off and infect more cells.

Protecting Against Airborne Transmission Of Covid-19 – Forbes

Previously, I wrote about the evidence for airborne transmission of Covid-19. Here I want to consider how to protect against airborne transmission and what airborne transmission might mean for the epidemiology of Covid-19.

Flu Season Looms And Scientists Wonder How Flu And COVID-19 Might Mix – NPR

4 min audio at the link – With the annual flu season about to start, it’s still unclear exactly how influenza virus will interact with the coronavirus if a person has both viruses. Doctors around the world have seen some patients who tested positive for both influenza virus and the coronavirus that causes COVID-19. At least a couple of dozen cases have been reported — although that’s not a lot, given that over 26 million people have tested positive for SARS-CoV-2, the virus that causes COVID-19.

Clinical Considerations

What COVID-19 is doing to the heart, even after recovery – AMA

A growing number of studies suggest many COVID-19 survivors experience some type of heart damage, even if they didn’t have underlying heart disease and weren’t sick enough to be hospitalized. This latest twist has health care experts worried about a potential increase in heart failure. “Very early into the pandemic, it was clear that many patients who were hospitalized were showing evidence of cardiac injury,” said Dr. Gregg Fonarow, chief of the division of cardiology at the University of California, Los Angeles. “More recently, there is recognition that even some of those COVID-19 patients not hospitalized are experiencing cardiac injury. This raises concerns that there may be individuals who get through the initial infection, but are left with cardiovascular damage and complications.”

‘Carnage’ in a lab dish shows how the coronavirus may damage the heart – STAT

Maybe we should think of Covid-19 as a heart disease. When SARS-CoV-2 virus was added to human heart cells grown in lab dishes, the long muscle fibers that keep hearts beating were diced into short bits, alarming scientists at the San Francisco-based Gladstone Institutes, especially after they saw a similar phenomenon in heart tissue from Covid-19 patients’ autopsies.

Did COVID-19 Mess Up My Heart? – The Atlantic

The stairs have become my daily Everest. Just six months ago, the steep climb to my fourth-floor walk-up in Brooklyn was a nuisance only when I was carrying bags of groceries. Now, every time I mount those 53 steps, no matter how slowly, even if I’m empty-handed, my heart rate shoots up to marathon-level. I can actually feel the thud-thud in my throat. Sometimes I have to pause between landings to lie on the floor and stick my feet up in the air to avoid passing out.

Researchers Identify Possible New Entry Points for SARS-CoV-2 / COVID-19 Into the Human Body – SciTechDaily

An infection with the coronavirus SARS-CoV-2 can affect multiple organs. With this in mind, researchers of the German Center for Neurodegenerative Diseases (DZNE) and Cornell University in the US have investigated cellular factors that could be significant for an infection. To this end, they analyzed the activity of 28 specific genes in a wide range of human tissues. Their findings, which provide a map of potentially disease-relevant factors across the human body, are published in the journal Cell Reports. [Related study in Cell]

Official Reporting for September 4, 2020

World Health Organization

Weekly Epi Update 3

Cumulative Cases: 26,171,112

Cumulative Deaths: 865,154


Confirmed Cases: 26,335,685

Deaths: 869,209

Johns Hopkins

Confirmed Cases: 26,493,914

Deaths: 872,250

Centers for Disease Control and Prevention (CDC)

Total cases: 6,132,074
Total deaths: 186,173

Surveillance Headlines


Maryland: 800+ New Cases Reported Friday, Hospitalizations Up – CBS Baltimore

Maine: Coronavirus cases tied to a Maine wedding reception more than double in a week – CNN


Brazil: Brazil Hits 4 Million Covid Cases While Life Gets Back to Normal – Bloomberg


Denmark: Schoolchildren in Denmark Return to Classes in Museums, Graveyards – Bloomberg

Science and Tech


COVID-19 vaccines: early success and remaining challenges – The Lancet

In The Lancet, Denis Y Logunov and colleagues from the N F Gamaleya Research Institute of Epidemiology and Microbiology in Russia present findings from two phase 1/2, non-randomised, open-label studies of a heterologous, replication-deficient, recombinant adenovirus vector-based vaccine in both frozen and lyophilised formulations.1 The researchers enrolled 76 healthy adult volunteers (aged 18–60 years) into the two studies (38 people in each study); 53 (70%) participants were men and 23 (30%) were women. The primary outcome measures of the studies were safety and immunogenicity (antigen-specific humoral immunity).


Drugs That Fight Diabetes and Obesity May Treat Covid-19 – Bloomberg

Novo Nordisk A/S, the Danish drugmaker, is exploring whether a new class of medicines that helps people lose weight and control diabetes also has potential in fighting Covid-19.


Social and Psychological Impact

Depression triples in US adults amid COVID-19 stressors – CIDRAP

COVID-19 has tripled the rate of depression in US adults in all demographic groups—especially in those with financial worries—and the rise is much higher than after previous major traumatic events, according to a study published yesterday in JAMA Network Open. [Related JAMA Study]

Published Research

SARS-CoV-2 reinfection in two patients who have recovered from COVID-19 – Precision Clinical Medicine

Prevalence of Depression Symptoms in US Adults Before and During the COVID-19 Pandemic – JAMA

Coping in Quarantine


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