A new study by Princeton University researchers showed that safety measures for COVID-19 may delay future outbreaks of flu and other respiratory illnesses.
Flu season had just combined with the current COVID-19 pandemic, and this "twindemic" worries public health experts that people might just shake off alarming symptoms.
Pandemics have ravaged society throughout history. The diseases changed the course of human life; at times, it completely eradicated an entire civilization. Here are the nine pandemics worse than COVID-19.