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Jul 23, 2020 · An international team of scientists has discovered for the first time that Vikings had smallpox 1,400 years ago. The experts have now genetically sequenced previously unknown strains of the virus that were found in the teeth of Viking skeletons from sites across northern Europe.
Dec 7, 2023 · Some death tolls have been estimated through epidemiological modeling – based on knowledge of the transmission of the disease and its geographical spread, its fatality rate (the share of people affected who die from it), access to treatment, and other types of data.
May 30, 2023 · Instead of just looking at tallied mortalities, epidemiologists use a metric called the “case fatality rate” or “case fatality ratio” as a measure of how likely a virus is to be lethal....
The 1918 H1N1 flu pandemic, sometimes referred to as the “Spanish flu,” killed an estimated 50 million people worldwide, including an estimated 675,000 people in the United States. 1,2,3,4 An unusual characteristic of this virus was the high death rate it caused among healthy adults 15 to 34 years of age. 3 The pandemic lowered the average ...
- Tuberculosis
- Smallpox
- HIV/AIDS
- Influenza
Tuberculosis (or TB) has been responsible for the death of more people than any other infectious disease in history; over a billion deathsin the past 200 years. Its origin is unclear, but it infects a number of other species, including cattle. Today, about a third of the world’s population is thought to be infected with TB, in its dormant form. Thi...
Smallpox was caused by the variola virus, which plagued humanity for millennia and had a lasting impact on human history. As late as the 1960s, smallpox was still endemic in Asia and Africa, with an estimated two million deathsoccurring annually. Smallpox was spread easily between people by sneezing or shared contact, leading swiftly to the charact...
In the early 1980s, a small number of gay men in the United States started presenting with unusual infections, previously only seen in people with severe immune deficiencies. Over the subsequent years, the human immunodeficiency virus (HIV) was discovered, and its global burden was recognised. The virus, which had most likely originated in primates...
It’s easy to forget about the danger of influenza. In most cases, this virus is responsible for a respiratory illness of varying severity that generally doesn’t require treatment. However, influenza has been responsible for more deaths in the last century than HIV/AIDS. Usually, seasonal influenza outbreaks occur annually and affect around four mil...
Mar 17, 2020 · The 1918 flu spread rapidly, killing 25 million people in just the first six months. This led some to fear the end of mankind, and has long fueled the supposition that the strain of influenza was...
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The 1918–1920 flu pandemic, also known as the Great Influenza epidemic or by the common misnomer Spanish flu, was an exceptionally deadly global influenza pandemic caused by the H1N1 influenza A virus.
