Virus Outbreaks In History

The spanish flu was the deadliest pandemic ever killing as many as 50 million people worldwide. Western african ebola virus epidemic is one of the most widespread outbreaks of ebola virus disease evd in history.

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The centers for disease control and prevention notes that the disease spread rapidly and was reported in singapore in february 1957 hong kong in april 1957 and the coastal cities of the united.

Virus outbreaks in history. 1999 2002 west nile virus the first account of the west nile virus in the u s. As the number of human cases grew so did the number of bird deaths. The h1n1 virus of 2009 began in the united states and spread worldwide.

One of the most virulent outbreaks in history the 1918 h1n1 flu epidemic followed american troop movements during world war i. The more civilized humans became with larger cities more exotic trade routes and increased contact with different populations of people animals and ecosystems the more likely pandemics would occur. Malaria tuberculosis leprosy influenza smallpox and others first appeared during these early years.

An epidemic is the rapid spread of disease to a large number of people in a given population within a short period of time. For example in meningococcal infections an attack rate in excess of 15. And outbreaks of these diseases across international borders are properly defined as pandemic especially smallpox which throughout history has killed between 300 500 million people in its 12 000 year existence.

Was in new york city in the summer of 1999. Leprosy was one of the earliest pandemics in recorded history sweeping through europe in the 11th century. Cholera bubonic plague smallpox and influenza are some of the most brutal killers in human history.

This is a list of the largest known epidemics including pandemics caused by an infectious disease widespread non communicable diseases such as cardiovascular disease and cancer are not included. First reported in singapore in february 1957 a new influenza a h2n2 virus emerged and became known as the asian flu it spread throughout china and its surrounding regions first and it. Best practices for communicating with the public during an outbreak communication for behavioural impact combi combi toolkit for behavioural and social communication in outbreak response.

The virus was transmitted by mosquito bites concentrating in areas with warmer temperatures. Originated in guinea in december 2013 this scariest disease caused a major loss of life and socioeconomic disruption in guinea liberia and sierra leone region.

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