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The United States Air Force swore-in its first Black chief of staff on Thursday.Air Force Secretary Barbara Barrett administered the oath of office to Gen. Charles Q. Brown during a ceremony at Joint Base Andrews, Maryland.“This is a very historic day for our nation, and I do not take this moment lightly,” Brown said at the ceremony. “Today's possible due to the perseverance of those who went before me, serving as an inspiration to me and so many others." 467

The United States State Department has lifted a worldwide Level 4 travel advisory which had been in place since the spring amid the spread of the coronavirus.A Level 4 advisory is the highest alert level at the State Department, which warns travelers of life-threatening risks.The State Department still has a number of Level 4 advisories across the globe, including neighboring Mexico.The change in status, however, might not have much impact on travelers as many countries have placed strict limits on non-essential travel from the United States. And with the United States still leading the world in coronavirus cases and deaths, Americans ability to travel internationally is expected to be limited for months to come. 730

The students-turned-activists who survived a mass shooting at their Florida high school last month are featured on the glossy cover of Time magazine.The magazine on Thursday revealed the cover of its April 2 issue, which features Marjory Stoneman Douglas students who are leading the national conversation about gun control in the wake of the Valentine's Day shooting that claimed the lives of 17 students and faculty members.Emma González, David Hogg, Cameron Kasky, Alex Wind and Jaclyn Corin all appear on the cover, with the word "ENOUGH," written in bold letters and imposed across the image. The accompanying story was also posted on Time's website.In the five weeks since the massacre, the Parkland, Florida, students have been transformed into high-profile gun control advocates, leading school walkouts and meeting with lawmakers as they demand steps be taken to address the issue of gun violence in America.The cover was revealed two days before the students and their allies rally in Washington for the March for Our Lives, a demonstration organized by the student group #NeverAgain and the gun control organization Everytown for Gun Safety. 1185

The University of Washington’s Institute for Health Metrics and Evaluation has been issuing frequent projections since March in an attempt to model the spread and impact of the coronavirus across the world.The models have been used by the CDC and White House coronavirus task force in an effort to better understand the potential number of deaths the coronavirus could cause.On Friday, the model added a new variable, one that could cause a steep decline of coronavirus deaths throughout the US. The IHME’s newest model, which predicts the number of coronavirus deaths in the US through the end of March, is now weighing the potential impact of vaccines on the virus.For those hoping for an immediate drop in hospitalizations and deaths caused by the coronavirus as soon as vaccinations begin later this month might be disappointed. The IHME's model shows the initial batch of vaccinations will have a relatively muted effect on deaths and hospitalizations initially. While by April 1, much of the general US population will likely not be fully vaccinated, many in the high-risk category should expect to vaccinated by then. How fast they get vaccinated will play a role in determining the number of coronavirus deaths in the US.As of Friday evening, there have been over 278,000 coronavirus-related deaths reported throughout the US, per Johns Hopkins University data. Without any vaccines reaching Americans, the IHME’s model projects a total of 548,000 would die from the coronavirus through April 1, meaning 270,000 deaths between now and then.If COVID-19 vaccines are distributed at expected levels, 9,000 lives would be saved by April 1, reducing the number of deaths between now and then to 261,000. But a rapid vaccine rollout – one that would vaccinate the high-risk population and begin to vaccinate the general population by the spring -- would result in 250,000 deaths between now and April 1.“Mass scale-up of vaccination in 2021 means we have a path back to normal life, but there are still a few rough months ahead,” said Dr. Christopher Murray, IHME director. “We must be vigilant in protecting ourselves at least through April, when, as our projections indicate, vaccines will begin to have an impact.”In the meantime, Murray says universal mask wearing and social distancing will save more lives than a potential vaccine in the next four months.“Especially in the Northern Hemisphere, it’s crucial for governments to impose or re-impose mandates that limit gatherings and require masks. Where the winter surge is driving spikes in infections, there will be many people who can still become infected and possibly die before the vaccine is fully rolled out,” said Murray.To see the IHME’s state-by-state projections for deaths, hospitalizations and cases, clickhere. 2790

The Supreme Court ruled in favor of Booking.com Tuesday in a landmark trademark case.In an 8-1 decision, the Supreme Court upheld a lower court ruling that determined that Booking.com is not a generic trademark because the term held meaning with consumers.Justice Stephen Breyer, a liberal judge, was the lone dissenting opinion.Other businesses including Cars.com, Dictionary.com, Newspapers.com and Wine.com said the outcome in the case would affect their ability to trademark their names too. 503