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The U.S. Food and Drug Administration updated its guidance on face coverings on Tuesday, adding information about wearing expired surgical masks.According to the FDA, face and surgical masks may still offer protection even if they've passed their designated shelf life or expiration date."If there is no date available on the face mask label or packaging, facilities should contact the manufacturer. The user should inspect all masks before use and, if there are concerns such as degraded materials (such as elastic) or visible tears," the agency recommends that you should discard the product.However, when it comes to re-using surgical disposal masks, the CDC recommends discarding them after one use.You can clean reusable masks, the CDC says, and recommends washing them after each use. For N95s, which the CDC considers a one-time-use product, but can be re-worn if cleaned with an approved decontamination method. 927

The stock market had its worst day in a month as virus cases surge and help for the economy from Washington remains nowhere in sight. The S&P 500 fell 1.9% Monday, deepening its losses from last week. Stocks of companies that need the virus to abate and the economy to return to normal had some of the biggest losses. Cruise lines and airlines fell sharply. Energy stocks also dropped in tandem with crude oil prices. In another sign of caution, Treasury yields pulled back after touching their highest level since June last week. Overseas markets also fell.The drop in stock value came as coronavirus cases reached peak levels in the US over the weekend, while White House chief of staff Mark Meadows proclaimed that the US would be unable to contain the spread of the virus. 788

The U.S. will pay drug company Pfizer .95 billion to produce and deliver 100 million doses of the company's COVID-19 vaccine candidate should the drug prove effective in human trials the company said in a press release on Wednesday.Pfizer will deliver the vaccine if and when the drug receives Emergency Use Authorization from the FDA after a large-scale Phase 3 trial.According to the reports, the deal includes an option for the government to purchase an additional 500 million doses of the vaccine.“Expanding Operation Warp Speed’s diverse portfolio by adding a vaccine from Pfizer and BioNTech increases the odds that we will have a safe, effective vaccine as soon as the end of this year,” Health and Human Services Sec. Alex Azar said in a statement. “Depending on success in clinical trials, today’s agreement will enable the delivery of approximately 100 million doses of this vaccine to the American people.”Pfizer and German firm BioNTech are working together to develop the vaccine.On Monday, Pfizer said in a press release that results from Phases 1 and 2 of a German trial indicated that the drug "could potentially be administered safely, with a manageable tolerability profile," according to data from the tests.Biotech company Moderna is also working to develop a coronavirus vaccine. That candidate will move into Phase 3 testing by the end of the month, and the government has also agreed to purchase and distribute the drug should the large-scale test prove effective. 1497

The state of play in key races has shifted since election night almost one week ago, offering a different picture of where the balance of power will stand in Washington come January.Democrats have taken the lead in a handful of key House races while the margin in Florida's Senate race has narrowed, forcing a recount.A key US Senate race in Arizona was settled on Monday night -- six days after Election Day -- when Republican Rep. Martha McSally conceded to Democratic Rep. Kyrsten Sinema.Two governors' races remain undecided in Georgia and Florida.Here's a breakdown of where key races stand: 605

The Trump administration will impose more sanctions on Russia under a chemical and biological warfare law following the poisoning of a former Russian agent and his daughter in the UK earlier this year, the State Department announced Wednesday.In a statement Wednesday, State Department spokeswoman Heather Nauert said the US had made this decision on Monday, and accused Russia of violating international law. The statement anticipated the sanctions would go into effect around Aug. 22 in line with the Chemical and Biological Weapons Control and Warfare Elimination Act of 1991.Sergei Skripal, a former Russian spy, and his daughter Yulia Skripal were hospitalized and treated for a nerve-agent attack in March. Yulia Skripal was discharged from the hospital in April, and her father was discharged in May.The State Department notified Congress on Wednesday of the first of two potential tranches of sanctions required under the 1991 law. Unless Russia takes certain steps, a second set of penalties -- more stringent than this first round -- must follow, according to the law.The first set of sanctions targets certain items the US exports to Russia that could have military uses -- so-called dual use technologies. These are sensitive goods that normally would go through a case-by-case review before they are exported. With these sanctions, the exports will be presumptively denied.A senior State Department official said there would be carve-outs however.The US would then require Russia to assure over the next 90 days that it is no longer using chemical or biological weapons and will not do so in the future. Additionally, the criteria in the law call for Russia to allow on-site inspectors to ensure compliance.The official said that if Russia did not meet the demands, the US "will have to consider whether to impose a second tranche of sanctions as specified by the statute."The United Kingdom welcomed the move from the US on Wednesday. In a short statement, a government spokesperson said, "The strong international response to the use of a chemical weapon on the streets of Salisbury sends an unequivocal message to Russia that its provocative, reckless behaviour will not go unchallenged." 2212