Search results
Results from the WOW.Com Content Network
[21] [22] According to the World Health Organization, approximately 10 million new TB infections occur every year, and 1.5 million people die from it each year – making it the world's top infectious killer (before COVID-19 pandemic). [21] However, there is a lack of sources which describe major TB epidemics with definite time spans and death ...
This is a timeline of influenza, briefly describing major events such as outbreaks, epidemics, pandemics, discoveries and developments of vaccines.In addition to specific year/period-related events, there is the seasonal flu that kills between 250,000 and 500,000 people every year and has claimed between 340 million and 1 billion human lives throughout history.
The four known genera Alphacoronavirus, Betacoronavirus, Gammacoronavirus, and Deltacoronavirus split up around 2,400 to 3,300 years ago into bat and avian coronavirus ancestors. Bat coronavirus gave rise to the species of Alphacoronavirus and Betacoronavirus that infect mammals, while avian coronavirus produced those of Gammacoronavirus and ...
Following warnings and increased preparedness in the 2000s, the 2009 swine flu pandemic led to rapid anti-pandemic reactions amongst the Western countries. The H1N1/09 virus strain with mild symptoms and low lethality eventually led to a backlash over public sector over-reactiveness, spending, and the high cost of the 2009 flu vaccine.
The difference between the influenza mortality age-distributions of the 1918 epidemic and normal epidemics. Deaths per 100,000 persons in each age group, United States, for the interpandemic years 1911–1917 (dashed line) and the pandemic year 1918 (solid line). [57] The Spanish flu pandemic lasted from 1918 to 1920. [58]
Over the next few hundred years, further outbreaks occurred in 1361–62, 1369, 1379–83, 1389–93, and throughout the first half of the 15th century. [34] An outbreak in 1471 took as much as 10–15% of the population, while the death rate of the plague of 1479–80 could have been as high as 20%. [ 35 ]
After 71 years in business, Santa Fe Basque closed its doors for the last time in Reno in summer 2020, citing a drop in business from a lack of downtown events due to the pandemic, among other ...
Young people with polio receiving physiotherapy in the 1950s. The social history of viruses describes the influence of viruses and viral infections on human history. Epidemics caused by viruses began when human behaviour changed during the Neolithic period, around 12,000 years ago, when humans developed more densely populated agricultural communities.