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Research from the University of Notre Dame estimates that more than 100,000 people were already infected with COVID-19 by early March-when only 1,514 cases and 39 deaths had been officially reported and before a national emergency was declared. The study provides insight into how limited testing and gaps in surveillance during the initial phase of the epidemic resulted in so many cases going undetected. The study was published in the Proceedings of the National Academy of Sciences.

The court said states may require members of the Electoral College to vote for the presidential candidates they had promised to support.

Case isolation and contact tracing can contribute to the control of COVID-19 outbreaks1,2. However, it remains unclear how real-world social networks could influence the effectiveness and efficiency of such approaches. To address this issue, we simulated control strategies for SARS-CoV-2 transmission in a real-world social network generated from high-resolution GPS data that were gathered in the course of a citizen-science experiment3,4. We found that tracing the contacts of contacts reduced the size of simulated outbreaks more than tracing of only contacts, but this strategy also resulted in almost half of the local population being quarantined at a single point in time. Testing and releasing non-infectious individuals from quarantine led to increases in outbreak size, suggesting that contact tracing and quarantine might be most effective as a 'local lockdown' strategy when contact rates are high. Finally, we estimated that combining physical distancing with contact tracing could enable epidemic control while reducing the number of quarantined individuals. Our findings suggest that targeted tracing and quarantine strategies would be most efficient when combined with other control measures such as physical distancing.

The U.S. shale-oil industry may collapse due to the sharp fall in oil prices because of the coronavirus pandemic, a new influential report predicts. The demand for and price of oil tumbled due to the economic slowdown and have since begun to recover, but Australian think tank the Institute for Economics and Peace warns that a low price will affect political regimes in the Middle East, especially in Saudi Arabia, Iraq and Iran.

Visual history of spread in USA

relentless and often unpredictable coronavirus has, among its many quirky terrors, dredged up once again the issue that will not die, science versus pseudoscience. The scientists, experts who would be the first to admit they are not infallible, are now in danger of being drowned out by the growing chorus of pseudoscientists, conspiracy theorists, and just plain troublemakers who seem to be as symptomatic of the virus as fever and weakness.