All the hilariously aggressive coronavirus propaganda banners found in China

Those who come visit you are enemies
Don’t open the door for enemies

Coronavirus State-By-State Projections: When Will Each State Peak? - NPR x UW

COVID-19 Global Cases Dashboard - Johns Hopkins University

Crush the Curve, Idaho antibody testing in ID

Face Masks: Much More Than You Wanted To Know - Slate Star Codex

Guidelines for Opening Up Idaho (PDF)

The Hammer and the Dance

Hammer and Mask - Wide spread use of reusable particle filtering masks as a SARS-CoV-2 eradication strategy - EGI, LessWrong

How to Make Gains Without a Gym - Greg Nuckols, Stronger by Science

NIH begins study to quantify undetected cases of coronavirus infection

Interested in enrolling? Contact: clinicalstudiesunit@nih.gov

NYT COVID data is now available on GitHub

Official Resources for the Novel Coronavirus in Idaho - Idaho.gov

Outbreak - Melting Asphalt

Possible Fiscal Policies for Rare, Unanticipated, and Severe Viral Outbreaks - Bill Dupor, St. Louis Fed

Quarantine RPG (PDF)

Resources on what you can do to stay healthy, and what to do if you feel ill - Healthwise

Sarah Constantin:

Visualizing Speech-Generated Oral Fluid Droplets with Laser Light Scattering - New England Journal of Medicine

Vitamin D and SARS-CoV-2 virus/COVID-19 disease - Lanham-New et al, 2020 (PDF)

This short original report aims to provide a balanced scientific view on vitamin D and SARS-CoV-2 virus/COVID-19 disease. It provides a succinct summary of the current scientific evidence of associations between vitamin D, influenza, upper respiratory tract infections (URTIs) and immune health. Importantly, the paper concludes with lifestyle strategies for avoiding vitamin D deficiency and ensuring a healthy balanced diet at any time, including during the current pandemic. The overarching messages are as follows: (1) Vitamin D is essential for good health. (2) Many people, particularly those living in northern latitudes (such as the UK, Ireland, Northern Europe, Canada and the northern parts of the USA, northern India and China), have poor vitamin D status, especially in winter or if confined indoors. (3) Low vitamin D status may be exacerbated during this COVID-19 crisis (eg, due to indoor living and hence reduced sun exposure), and anyone who is self-isolating with limited access to sunlight is advised to take a vitamin D supplement according to their government’s recommendations for the general population (ie, 400 IU/day for the UK7 and 600 IU/ day for the USA (800 IU for >70 years))8 and the European Union (EU).9 (4) There is no strong scientific evidence to show that very high intakes (ie, mega supplements) of vitamin D will be beneficial in preventing or treating COVID-19. (5) There are evidenced health risks with excessive vitamin D intakes especially for those with other health issues such as a reduced kidney function.

Vitamin D insufficiency is prevalent in severe COVID-19 - Lau et al, 2020 (PDF)

This small, retrospective observational study suggests a link between [Vitamin D insufficiency] and severe COVID-19. Anecdotal and observational data indicate that VDI may play a significant role in the progression of the COVID-19 disease state.

UPDATE 4/16/22 - More evidence is in, and although it remains safe and cheap to supplement if you might be deficient, it seems like Vitamin D is probably not a huge factor for Covid-19:

Vitamin D Supplements for Prevention of Covid-19 or other Acute Respiratory Infections: a Phase 3 Randomized Controlled Trial (CORONAVIT) - Jolliffe et al, 2022 (PDF)

Among adults with a high baseline prevalence of vitamin D insufficiency, implementation of a test-and-treat approach to vitamin D replacement did not reduce risk of all-cause ARI or Covid-19.

Why outbreaks like coronavirus spread exponentially, and how to “flatten the curve” - WaPo