undetected

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

WHO's Africa regional director Mohamed Yakub Janabi said Ebola had had a silent early phase, when symptoms resemble malaria or typhoid, meaning transmission can remain undetected.

From Barron's • May 22, 2026

The first known case was a nurse who developed symptoms on 24 April, so the virus had been spreading undetected for weeks.

From BBC • May 18, 2026

The World Health Organization declared a global health emergency over an Ebola outbreak in the Democratic Republic of Congo and Uganda, warning that the epidemic could still be spreading undetected.

From The Wall Street Journal • May 17, 2026

A higher threshold may reduce wrongful interventions but could allow legitimate threats to go undetected.

From Salon • May 12, 2026

Getting to the Potomac undetected means traveling down well-used public roads.

From "Lincoln's Last Days: The Shocking Assassination that Changed America Forever" by Bill O'Reilly