At first, compared with the persistent spreading in the model (1), both spreading and vanishing can occur in the model (2) depending on the initial size.
(Human urine is also a poor antidote, despite a persistent myth spread by an episode of "Friends").
But we do know a few things: Zika is not caused by vaccines, despite persistent rumors spread by anti-vaccine zealots, including the willfully uninformed Vaccine Information Network.
Since being jolted by the terrorist attacks of Sept. 11 and the persistent, mysterious spread of anthrax, the government has been struggling to discern what weapon, if any, might be aimed at the nation next.
(Human urine is also a poor antidote, despite a persistent myth spread by an episode of "Friends_._") C.S.L., an Australian pharmaceutical company, sells "antivenom" for box jellyfish, made by harvesting antibodies from the blood of partially envenomed sheep.
This suggests that higher inflation could prove to be more persistent and spread from food to other goods and services, requiring the PBOC to tighten by much more.But another difference between today and previous bouts of inflation is that in the past rising inflation went hand-in-hand with a widening current-account deficit a classic symptom of overheating.
They report that since December 2012, 15 schools across Weld County reported cases of whoping cough, also known as pertussis, which is a stubborn and persistent cough, spread primarily from person-to-person by coughing.
The larvae live in the sediment, which is a repository for many persistent chemicals spread into water.
