The Never-Ending Question

Angie Szumlinski Health, Studies

What proportion of coronavirus disease 2019 (COVID-19) spread is associated with the transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from persons with no symptoms? In a recent study using multiple scenarios of proportions of asymptomatic individuals with COVID-19 and infectious periods, transmission from asymptomatic individuals was estimated to account for more than half of all transmissions. In addition …

Immunity – Asymptomatic COVID-19

Angie Szumlinski Health, Studies

Much debate has focused on the possibility that the Ab response to SARS-CoV-2 may be short-lived, while T cell recognition may be strong, durable, and more common. Mild or asymptomatic infections are very common but are not usually diagnosed, making an assessment of the durability of immunity in this common group challenging. A study was done on an exposed health …

Asymptomatic Spread of COVID-19

Angie Szumlinski Studies

As severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the novel coronavirus that causes coronavirus disease 2019 (COVID-19), began to spread globally, it became apparent that the virus, unlike the closely related SARS-CoV in the 2003 outbreak, could not be contained by symptom-based screening alone. Asymptomatic and clinically mild infections were uncommon during the 2003 SARS-CoV outbreak and there were no …

Testing – Asymptomatic COVID-19

Angie Szumlinski Featured, Health

As the U.S. recorded its five highest days of coronavirus cases, the Centers for Disease Control and Prevention Director Dr. Robert Redfield said this is the perfect time to develop a strategy to better detect asymptomatic cases. The nationwide seven-day average of new daily cases now stands at about 86,363, more than double what it was on September 4 per …

Asymptomatic Transmission of SARS-CoV-2 on Flights

Angie Szumlinski Studies

On March 31, 2020, there was a study of 310 passengers who boarded an evacuation flight from Milan, Italy, to South Korea. This evacuation flight was conducted under strict infection control procedures by the Korea Centers for Disease Control and Prevention (KCDC), based on the guidelines of the World Health Organization (WHO). When the passengers arrived at the Milan airport, …