![Evaluation of Test to Stay Strategy on Secondary and Tertiary Transmission of SARS-CoV-2 in K–12 Schools — Lake County, Illinois, August 9–October 29, 2021 | MMWR Evaluation of Test to Stay Strategy on Secondary and Tertiary Transmission of SARS-CoV-2 in K–12 Schools — Lake County, Illinois, August 9–October 29, 2021 | MMWR](https://www.cdc.gov/mmwr/volumes/70/wr/social-media/mm705152e2_IllinoisK-12TestStrategy_IMAGE_17Dec21_Social_V2_1200x675.jpg)
Evaluation of Test to Stay Strategy on Secondary and Tertiary Transmission of SARS-CoV-2 in K–12 Schools — Lake County, Illinois, August 9–October 29, 2021 | MMWR
![Development of high-precision pool-based mass screening systems for SARS-CoV-2 detection using fully automated genetic testing devices | 2021| NEWS | Kyoto University Hospital Development of high-precision pool-based mass screening systems for SARS-CoV-2 detection using fully automated genetic testing devices | 2021| NEWS | Kyoto University Hospital](https://www.kuhp.kyoto-u.ac.jp/english/news/img/news/2021071501.png)
Development of high-precision pool-based mass screening systems for SARS-CoV-2 detection using fully automated genetic testing devices | 2021| NEWS | Kyoto University Hospital
![Air Force successfully tests first fully-operational air-launched hypersonic missile - Breaking Defense Air Force successfully tests first fully-operational air-launched hypersonic missile - Breaking Defense](https://sites.breakingmedia.com/uploads/sites/3/2022/12/6301067-scaled.jpg)
Air Force successfully tests first fully-operational air-launched hypersonic missile - Breaking Defense
![Results from a Test-to-Release from Isolation Strategy Among Fully Vaccinated National Football League Players and Staff Members with COVID-19 — United States, December 14–19, 2021 | MMWR Results from a Test-to-Release from Isolation Strategy Among Fully Vaccinated National Football League Players and Staff Members with COVID-19 — United States, December 14–19, 2021 | MMWR](https://www.cdc.gov/mmwr/volumes/71/wr/figures/mm7108a4-F2-large.gif?_=22901)
Results from a Test-to-Release from Isolation Strategy Among Fully Vaccinated National Football League Players and Staff Members with COVID-19 — United States, December 14–19, 2021 | MMWR
![US Air Force carries out first fully successful test of air-launched hypersonic missile | CNN Politics US Air Force carries out first fully successful test of air-launched hypersonic missile | CNN Politics](https://media.cnn.com/api/v1/images/stellar/prod/221212134333-air-launched-rapid-response-weapon-file-080820.jpg?c=original)
US Air Force carries out first fully successful test of air-launched hypersonic missile | CNN Politics
![Federal Register :: Requirement for Negative Pre-Departure COVID-19 Test Result or Documentation of Recovery From COVID-19 for All Airline or Other Aircraft Passengers Arriving Into the United States From Any Foreign Country Federal Register :: Requirement for Negative Pre-Departure COVID-19 Test Result or Documentation of Recovery From COVID-19 for All Airline or Other Aircraft Passengers Arriving Into the United States From Any Foreign Country](https://images.federalregister.gov/EN05NO21.066/original.png?1636032919)