Science news articles about 'periodic outbreaks'

... and the Americas, including the United States, the site of periodic outbreaks. Vivax malaria, as it is known, is believed more robust and resilient than its cousin, the more deadly malaria species ...

... upward into higher trophic levels resulting in periodic outbreaks of herbivorous species and migratory activity. Neotropical wet forests are different because El ...

... that has already infected millions of people in recent outbreaks in South and Southeast Asia, the islands of the Indian ... equine encephalitis viruses (both responsible for periodic outbreaks in the United States), and Africa's o ...

... . Cholera was among the most dreaded diseases of the age; periodic outbreaks wrought havoc in the crowded cities of Europe through much of the century, and doctors were no ...

Periodic outbreaks of bark beetles can cause annual losses of millions of dollars and pose serious challenges for forest managers, and the suppression of outbreaks is particularly difficult and expensive. According to T. D ...