The phrase "pandemic outbreaks" refers to widespread occurrences of a contagious disease that affects a large number of people across different regions or countries. Full definition
The research published in PLOS Computational Biology, led by Dr. James Tamerius at the University of Iowa and Dr. Gerardo Chowell at Georgia State University, applied mathematical models to understand the social and environmental processes that generated two distinct pandemic outbreaks («waves») in Mexico during the summer and fall of 2009. (sciencedaily.com)
Taken together, these findings suggest that a single Y. pestis lineage was responsible for the Black Death and subsequent second pandemic outbreaks throughout Europe. (sciencedaily.com)
The US government says it is taking swift measures to contain the swine influenza outbreak that threatens to turn into a pandemic (newscientist.com)