DETROIT – Why do some COVID patients continue to suffer from symptoms months after being infected? They hope to determine why so-called “long haulers” are still suffering and what can be done to help them. “The symptoms of this include fatigue, shortness of breath, sleep disorders, fevers, GI symptoms, anxiety and depression. AdFauci said that around 30 percent of the patients who are enrolled at the University of Washington reported persistent symptoms for as long as nine months after illness. The new study will try to answer questions that include what makes people vulnerable to suffering long-haul symptoms and what’s the underlying biological cause of the prolonged symptoms.

DETROIT – Rapidly climbing case counts of COVID-19 have led to cities and counties in several states to issue new restrictions on restaurants and bars. READ: Michigan coronavirus cases up to 244,741; Death toll now at 7,929A new study is renewing concerns about the role restaurants and bars may play in helping to spread COVID-19. Researchers from Stanford University studied cell phone data from 10 U.S. cities collected from March to May of this year. They found full-service restaurants were the riskiest place for new infections, about four times riskier than gyms and coffee shops. READ: Top Henry Ford Health doctor worried about Michigan COVID-19 deaths rising in near future

DETROIT – As children return to indoor classrooms and colder weather increases indoor activities for everyone, research into the way ventilation systems can help or hurt us when it comes to coronavirus (COVID-19) is important. They concluded that many modern office buildings may increase the risk of exposure to COVID-19. Many indoor heating and cooling systems have been designed to maximize energy efficiency, leading to a decreased exchange with fresh outdoor air. The very design of many ventilation systems can also contribute to contaminated aerosols staying in a room. If you’re in an office and have access to a window, open it, or at least crack it to allow fresh air in.

Children can still become infected and spread the illness to other children and adults. But compared to older adults, children develop severe illness much less often. A new study published in the Science Translational Medicine journal looked at the immune response to COVID-19 in 65 children and 65 adults. READ: CDC says new guidance on airborne coronavirus transmission was ‘posted in error’Some children still do develop severe disease. Children infected with SARS-CoV-2 do not develop as severe illness as adults -- even among children who develop multi-system inflammatory syndrome, death is rare.

DETROIT A new study is looking at what it would take for colleges to reopen safely. The findings suggest frequently testing all of the students would be necessary to keep classes on campus and the coronavirus (COVID-19) under control. In the hypothetical study, all were living on campus and none had immunity to COVID-19. Testing students every two days would cost about $470 per student, per semester. Testing every two days, even with a lower-quality test, still prevented more hypothetical infections than weekly testing with a more expensive test.

DETROIT Warm weather across the country is driving people to the comfort of indoor air conditioning -- but some were wondering if it was a good idea amid the coronavirus (COVID-19) outbreak. A detailed investigation concluded that the virus was most likely spread to distant tables by the flow of air from the air conditioner. One important concern is that air conditioning systems could either blow the aerosol more quickly from an infected person to nearby people or by recirculating the air, could spread virus even farther. High efficiency HEPA filtration systems would trap infectious particles in the air stream, specific wavelengths of ultraviolet lights embedded in the duct work or near air registers could kill virus, and finally existing systems could be redesigned to bring in fresh uncirculated outdoor air to dilute any infectious particles in the air. Whether its summer or winter -- all businesses and schools should begin to consider how they can efficiently improve indoor air quality.