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Decades of underinvestment has left tens of thousands of schools across the country with inadequate ventilation systems, a problem that is now front and center in the debate to reopen schools during the pandemic.Nationally, 90 percent of schools fail to meet minimum ventilation standards. It’s an issue Dr. Joseph Allen has been sounding the alarm about since COVID-19 first shut down schools earlier this year.“We’ve chronically underinvested in our schools’ buildings,” said Dr. Allen who serves as the director of the Healthy Buildings program at the Harvard Chan School of Public Health.Dr. Allen and his colleagues have spent months analyzing school buildings, and back in June, they released a detailed 60-page report that school districts could follow in order to safely bring kids back into the classroom.In order to keep COVID-19 from spreading in schools, two things have to happen: everyone in the buildings must be wearing masks and school districts need to ensure buildings have proper ventilation, the report found.“If air is being recirculated and not filtered, all of that air that’s coming from one space and going to another could be potentially contaminated and spread the virus,” Dr. Allen said.But replacing decades-old ventilation systems that may not work properly is expensive and time-consuming. Because of that, Dr. Allen is recommending school districts also consider portable air cleaners for classrooms.Through his research, Dr. Allen found that if you can change the air in a classroom five times per hour, it cleans the air in that space every 12 minutes. However, the air cleaners must be equipped with a HEPPA filter in order to be effective.Even something as simple as opening windows could reduce the transmission of the virus.“If you look at the cases of spread in school right now, they all share common traits; it’s no mask-wearing and low to no ventilation. When we do that, we can guarantee there will be more cases,” he explained.Last week, the Healthy Buildings program also released a detailed portable air cleaner calculator. The tool allows school administrators to input the size of the classroom, even ceiling height, and then determine the kind of air cleaner that would most effectively keep COVID-19 from spreading.“It is critically important that we get kids back into in-person learning and we haven’t treated it as this national priority that it needs to be,” Dr. Allen added. 2438

Data shows the number of prison inmates testing positive for the coronavirus soared well past the 50,000 mark this week. The increase is a sign that recent outbreaks are threatening to undo control measures put in place earlier in the pandemic. At the end of June, the total number of coronavirus cases among prisoners had reached at least 52,649, an increase of 8% from the week before. That's according to data compiled by the Marshall Project, a nonprofit news organization focusing on criminal justice, and The Associated Press. Of those, at least 35,796 have recovered, and at least 616 inmates have died. 618

DETROIT — Tyesha Dukes says her baby boy, Julies, was born in December 2017 but lost him hours later. She says she trusted Perry Funeral Home to bury her son, but never received a death certificate stating where he had been buried.Dukes says once news hit of 11 fetuses being found inside the ceiling of Cantrell Funeral Home, she got worried and called Perry Funeral Home. She placed the call Thursday, the day before the police raid occurred that turned up 63 infant remains and fetuses improperly stored inside the funeral home. “I had called just to see," Dukes said. "If it’s baby bodies at this funeral home, let me call and see if my baby, you know, (is) buried or not." She says that she was assured her baby was buried at Gethsemane Cemetery off of Gratiot in Detroit, but now she is not so sure. “This funeral home is under investigation." Dukes said. "How do I know my baby is not in there thrown to the side?" Detroit Police say they found 37 fetuses and infants inside three unrefrigerated cardboard boxes, and another 27 from a freezer inside Perry Funeral Home Friday afternoon. According to the Michigan Department of Licensing and Regulatory Affair’s Database, and Perry Funeral Home's website, the owner of Perry Funeral Home is James Vermeulen. Vermeulen is also the owner of Vermeulen-Sajewski Funeral homes in Plymouth and Westland. WXYZ received a statement from Vermeulen’s lawyer, Collins Einhorn Farrell law firm based out of Southfield. It states:  1542

Detroit police are investigating after a teen was shot in the back of the head while live on Instagram.According to police, it happened in a home in the 17600 block of San Juan on the city's west side.Police say just before midnight, two 18-year-old men were live on Instagram with guns and money. Per the suspect, he accidentally put his finger on the trigger and discharged the rifle, striking the other 18-year-old in the back of the head in the living room.Police and medics arrived on scene and pronounced the man dead.The other 18-year-old was taken into custody.  583

DETROIT (AP) — Korean automakers Hyundai and Kia are recalling over 591,000 vehicles in the U.S. to fix a brake fluid leak that could cause engine fires. The recalls cover more than 440,000 Kia Optima midsize sedans from 2013 through 2015 and Kia Sorento SUVs from 2014 and 2015. Also covered are 151,000 Hyundai Santa Fe SUVs from 2013 to 2015. The affiliated automakers say brake fluid can leak inside a hydraulic control unit for the anti-lock brakes, possibly causing an electrical short that can lead to fires. Kia’s recall will start Oct. 15, while Hyundai’s will start Oct. 23. Dealers for both companies will inspect the control units for leaks and replace them if needed at no cost to owners. 709

来源：资阳报