This page is no longer being updated and reflects the status of vaccine progress through March 4, 2021.For more coverage about the pandemic, visit our . The first vaccine to be cleared by U.S. regulators was developed by pharmaceutical giant Pfizer and its German partner BioNTech. BioNTech began working on a vaccine in January last year, and the companies began working together in , broadening a joint effort to use the same technology to develop an influenza vaccine. In November, companies reported that the vaccine was more than 90 percent effective in late-stage trials and were granted...…This page is no longer being updated and reflects the status of vaccine progress through March 4, 2021.For more coverage about the pandemic, visit our . The first vaccine to be cleared by U.S. regulators was developed by pharmaceutical giant Pfizer and its German partner BioNTech. BioNTech began working on a vaccine in January last year, and the companies began working together in , broadening a joint effort to use the same technology to develop an influenza vaccine. In November, companies reported that the vaccine was more than 90 percent effective in late-stage trials and were granted...WW…

Add to list On my list Are you a medical professional N95 surgical masks YES NO cloth mask Can you sew? YES cloth mask NO Are you a medical professional Can you sew? NO YES YES NO N95 surgical masks Sew a Cut a Are you a medical professional? Can you sew? NO NO YES YES N95 surgical masks cloth mask cloth mask Please Note The Washington Post is providing this important information about the coronavirus for free. On April 3, U.S. health officials recommended an arts-and-crafts project to U.S. residents: Make a cloth mask, then wear it when you go out in public. Covering your mouth and nose is...…Add to list On my list Are you a medical professional N95 surgical masks YES NO cloth mask Can you sew? YES cloth mask NO Are you a medical professional Can you sew? NO YES YES NO N95 surgical masks Sew a Cut a Are you a medical professional? Can you sew? NO NO YES YES N95 surgical masks cloth mask cloth mask Please Note The Washington Post is providing this important information about the coronavirus for free. On April 3, U.S. health officials recommended an arts-and-crafts project to U.S. residents: Make a cloth mask, then wear it when you go out in public. Covering your mouth and nose is...WW…

Story continues below advertisementYour browser does not support the video element.All it takes is one ember, thrown from a wildfire. Aided by the wind, these pulsing red bits of wood can quietly sneak thousands of feet from the fire line and land on a property. Ignition can happen in a matter of minutes. Soon, only ashes remain.Wildfires are growing in size and frequency due to climate change, to the World Health Organization. Common ways that wildfires cause property damage include not only embers but also direct flames and radiant heat, which in tightly packed communities can lead to a...…Story continues below advertisementYour browser does not support the video element.All it takes is one ember, thrown from a wildfire. Aided by the wind, these pulsing red bits of wood can quietly sneak thousands of feet from the fire line and land on a property. Ignition can happen in a matter of minutes. Soon, only ashes remain.Wildfires are growing in size and frequency due to climate change, to the World Health Organization. Common ways that wildfires cause property damage include not only embers but also direct flames and radiant heat, which in tightly packed communities can lead to a...WW…

The bar was closed, and at a table in the back sat someone new: an engineering professor whose specialty is air quality.“If this is going to work right, the ventilation keeps up with the head count,” explained the expert, Mark Hernandez of the University of Colorado. Every 15 minutes, he would walk to the front desk to check how many people were now seated indoors. Then he would compare that number to the air’s current levels of carbon dioxide and particulate matter, to see how much exhaled breath lingered in the air and what expelled aerosols it could contain.Indoor dining remains risky,...…The bar was closed, and at a table in the back sat someone new: an engineering professor whose specialty is air quality.“If this is going to work right, the ventilation keeps up with the head count,” explained the expert, Mark Hernandez of the University of Colorado. Every 15 minutes, he would walk to the front desk to check how many people were now seated indoors. Then he would compare that number to the air’s current levels of carbon dioxide and particulate matter, to see how much exhaled breath lingered in the air and what expelled aerosols it could contain.Indoor dining remains risky,...WW…

This is a carousel. Use Next and Previous buttons to navigateThe dream began in 1955, with a tiny, toylike creation called the "Sunmobile." Built from balsa wood and hobby shop tires, it was just 15 inches long. The 12 selenium solar cells that decorated its exterior produced less horsepower than an actual horse. But it was proof of a concept: Sunlight alone can make a vehicle run.The years went on, and the dream evolved into a converted vintage buggy with solar panels on its roof. Then a glorified bicycle, a retiree's garage project, a racecar that crossed the Mojave Desert at 51 miles per...…This is a carousel. Use Next and Previous buttons to navigateThe dream began in 1955, with a tiny, toylike creation called the "Sunmobile." Built from balsa wood and hobby shop tires, it was just 15 inches long. The 12 selenium solar cells that decorated its exterior produced less horsepower than an actual horse. But it was proof of a concept: Sunlight alone can make a vehicle run.The years went on, and the dream evolved into a converted vintage buggy with solar panels on its roof. Then a glorified bicycle, a retiree's garage project, a racecar that crossed the Mojave Desert at 51 miles per...WW…

Five months after the first vaccine doses were administered to U.S. health-care workers, the Centers for Disease Control and Prevention announced May 13 that fully immunized people can safely resume most of their pre-pandemic activities. As vaccine supply outstrips demand, health officials are trying to persuade holdouts to get their shots. Here are answers to some frequent questions.Show all answersHide all answersThe CDC says that if you are fully vaccinated, you can resume all your usual activities without masks or physical distancing in most cases, even when you are indoors or in large...…Five months after the first vaccine doses were administered to U.S. health-care workers, the Centers for Disease Control and Prevention announced May 13 that fully immunized people can safely resume most of their pre-pandemic activities. As vaccine supply outstrips demand, health officials are trying to persuade holdouts to get their shots. Here are answers to some frequent questions.Show all answersHide all answersThe CDC says that if you are fully vaccinated, you can resume all your usual activities without masks or physical distancing in most cases, even when you are indoors or in large...WW…