For the definition of the effective date, it's necessary to go back to the Code of Federal Regulations, Title 42: Public Health, Chapter IV, Centers for Medicare and Medicaid Services (CMS), Department of Health and Human Services, Subchapter G, Standards and Certification; Part 489-Provider Agreements and Supplier Approval; Subpart AâGeneral ...
Report Abuse. A cough is a reflex when we're ill. This is going to sound pretty disgusting but extra mucus is produced during illness to catch any bacteria and stop more of whatever's made you ill from entering your body, and you cough it back up regularly to stop the mucus from entering your lungs and choking you.
Around any school or office, you hear them coughing and sneezing. Yet experts' flu prevention advice is clear: Stay home when you are sick. The problem is, With a lot of flu viruses, people can be infectious before they have symptoms, says Erica Brownfield, MD, a professor of internal medicine at Emory University School of Medicine in Atlanta.