Long COVID refers to new or recurring symptoms that occur four or more weeks after an infection with SARS-CoV-2, the virus that causes COVID-19.
COVID-19 is the disease caused by the SARS-CoV-2, the 2019 novel coronavirus.
Coronavirus is a term describes a family of viruses, common in both animals and humans.
Pediatric acute respiratory failure is an emergency. It can be serious, even life-threatening, but most children recover without chronic illness.
Asthma—a chronic inflammation of the airways that causes trouble breathing—affects 5 to 10 percent of children in the United States.