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The Wake Forest Institute for Regenerative Medicine says it has a new use for its bioprinting system. In the past they've 3D printed normal-size organs and tissues in hopes of someday implanting them in patients.For the coronavirus, the lab is creating organs using human cells that can be as small as a pinhead. They're focusing on the organs most likely to be infected by the disease. like the lungs.“And so we've been playing with a number of agents to, on both prongs what can make it more infective, what can make it less infective to try to sort this out for the future,” Anthony Atala, director for the institute said.Atala says he hopes the system will help in testing drugs before they hit the market.Drug companies do extensive testing and clinical trials in people before releasing a new medication.Atala says sometimes those companies find no serious side effects, but then years later, discover that it's toxic to patients taking it. Atala says testing a drug using the bioprinting system can tell if a drug is toxic in weeks instead of after years on the market.“Even though we've used the tool extensively for toxicity testing, it's also a tool that can be used for screening,” Atala said. “So we can test agents that are currently being considered for testing against COVID and test the efficacy of the treatment on miniature human organs made up of normal cells”To be clear, Atala said drug tests on 3D printer organs are not meant to replace clinical trials in humans, be are an added step to better predict what will happen in those trials. 1567

The Senate on Wednesday will hold a hearing regarding the safety of vaccines, which will feature appearances by Surgeon General Dr. Jerome Adams and National Institutes of Health Director Dr. Francis Collins.The hearing, hosted by the Senate HELP Committee, will discuss the role of vaccines in preventing infectious disease outbreaks and protecting public health.Wednesday's hearing will also include information on a potential COVID-19 vaccine.Top U.S. health experts like Dr. Anthony Fauci say they are cautiously optimistic that there will be enough evidence to grant Emergency Use Authorization to top vaccine candidates by the end of 2020. However, recent polls indicate that some Americans remain skeptical about vaccines.A recent CBS News poll indicates that just 21% of American voters would receive a COVID-19 if one were made available at no cost. That's down from about 30% earlier this year. Two-thirds of those polled say they feel a vaccine would be "rushed" if a vaccine were made available this year.Fauci has said that if a potential vaccine is 75% effective against the virus, it still may not be effective in promoting inoculation levels necessary for "herd immunity" in the U.S. due to Americans' ongoing skepticism about vaccines.Nine vaccine makers banded together to sign a pledge on Tuesday to say that they will not seek Emergency Use Authorization for their vaccine candidates until scientific methods prove they are safe for widespread use. 1476

The South Korean government says thousands of BMWs will be banned from the country's roads after some vehicles caught fire.The German automaker is facing a public relations crisis in South Korea over the fires, which it has blamed on a problem with the cars' exhaust systems.BMW recalled more than 100,000 vehicles in South Korea last month and has been carrying out emergency inspections. It expanded the checks to Europe last week.As of late Monday, more than 27,000 of the affected BMWs in South Korea still hadn't been checked, according to the South Korean government."Our citizens are deeply concerned," Transportation Minister Kim Hyun-mee said Tuesday. She ordered local authorities to ban people from driving any of the potentially fire-prone BMWs that haven't been brought in for checks. 805

The top 10 has been reduced to seven.After airing live coast-to-coast on Sunday, three American Idol hopefuls were eliminated from the competition.(Spoiler alert: If you continue reading, you will learn who was eliminated from the competition.)After "millions" of votes were cast throughout the two-hour show, host Ryan Seacrest revealed that Ada Vox, Dennis Lorenzo and Melissa Sussette had not received enough votes to move on to the competition's next round.The judges looked shocked. Naturally, people took to Twitter to share their reactions.Here is a look at the Top 7: 593

The U.S. Marine Corps says it has lifted a "shelter-in-place" order at the Air Ground Combat Center (AGCC) in Twentynine Palms, California following earlier reports of an "active shooter."According to a statement from the Marines, the order was enacted when an "individual" suffered a self-inflicted gunshot wound on the base at about 8:30 a.m. PT. No other injuries were reported. The person who fired the gun has been transported to a local medical center for treatment.The Marines say they are investigating.Shortly after 8:30 a.m., the Marines tweeted that they were "aware of reports" of an active shooter at the AGCC. Later, both KESQ-TV in Palm Springs, California and KTTV-TV in Los Angeles reported — citing a base spokesperson — that a suspect had been taken into custody and that there were no reports of injuries. The Marines later disputed those reports, saying that it could not confirm that a suspect was in custody.The base is located about an hour's drive northwest of Palm Springs. 1008