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- A disease outbreak is the occurrence of disease cases in excess of normal expectancy. The number of cases varies according to the disease-causing agent, and the size and type of previous and existing exposure to the agent.
www.who.int/teams/environment-climate-change-and-health/emergencies/disease-outbreaks
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A disease outbreak is the occurrence of disease cases in excess of normal expectancy. The number of cases varies according to the disease-causing agent, and the size and type of previous and existing exposure to the agent.
Outbreaks are maintained by infectious agents that spread directly from person to person, from exposure to an animal reservoir or other environmental source, or via an insect or animal vector. Human behaviours nearly always contribute to such spread.
In epidemiology, an outbreak is a sudden increase in occurrences of a disease when cases are in excess of normal expectancy for the location or season. It may affect a small and localized group or impact upon thousands of people across an entire continent.
Jan 1, 2008 · This study describes a simple way to evaluate whether an epidemic wave is likely to be present based solely on daily new case count data.
Understanding the spread of SARS-CoV-2, how and when evidence emerged, and the timing of local, national, regional, and global responses is essential to establish how an outbreak became a pandemic and to prepare for future health threats.
- Sudhvir Singh, Christine McNab, Rose McKeon Olson, Nellie Bristol, Cody Nolan, Elin Bergstrøm, Micha...
- 2021
Feb 19, 2021 · A disease outbreak is endemic when it is consistently present but limited to a particular region. This makes the disease spread and rates predictable. Malaria, for example, is considered endemic in certain countries and regions. What are the Differences Between Pandemics and Epidemics?
Oct 15, 2007 · Abstract. In the last two decades, emergence and re-emergence of infectious diseases have amplified the use of emotionally charged terms like “outbreak,” “epidemic,” and “pandemic” in the life sciences literature, the news media, and clinical practice. For instance, “outbreak” sounds like a scientific term, yet has quite a ...
