USA Today: How and why coronavirus makes you sick

UC expert explains the mechanics of how people develop COVID-19

USA Today turned to Dr. Carl Fichtenbaum of the UC Division of Infectious Diseases as the lone medical source for a story explaining how the coronavirus spreads from person to person and physically impacts people who develop COVID-19. 

four-panel illustration shows how the coronavirus spreads from one person to another

Illustration from USA Today showing how the coronavirus infects people. Photo credit/Kevin Necessary/Cincinnati Enquirer

Dr. Fichtenbaum told USA Today the virus is spread when an infected person expels tiny droplets from the mouth, throat or lungs, usually during a cough or sneeze.

“Viruses need something else’s machinery to help generate them,” Fichtenbaum says. “They’re what we call a parasite.”

Fichtenbaum said the reason some people with COVID-19 lose their sense of smell is because the virus somehow interferes with the olfactory nerve, which transmits sensory data to the brain and is responsible for the sense of smell.

Read the article here

Featured image at top Dr. Carl Fichtenbaum/Photo credit/Colleen Kelley/UC Creative Services + Brand

Find the latest details related to coronavirus disease 2019 (covid-19) on the Centers for Disease Control and Prevention (CDC) website, and follow UC's latest information with regard to the virus.

Related Stories

1

UC launches new Center for Public Health

April 6, 2026

The University of Cincinnati College of Medicine recently announced Suzanne Judd, PhD, as the inaugural director of its new Center for Public Health. The hire follows a national search launched in August 2025, as the Cincinnati Business Courier reported.

2

High Court offers protections for therapy speech

April 5, 2026

Jennifer Bard, a professor in the Donald P. Klekamp College of Law and the UC Department of Internal Medicine, spoke with journalists about the US Supreme Court ruling granting first amendment protections for speech offered during therapy sessions.

3

UC names Suzanne Judd, PhD, as inaugural director of new Center for Public Health

April 2, 2026

Following an extensive national search, the University of Cincinnati College of Medicine has appointed Suzanne E. Judd, PhD, as the inaugural director of its newly established Center for Public Health. Judd, a renowned epidemiologist and interdisciplinary scholar, will lead the center’s mission to transform community health through innovative research, education and strategic advocacy.