pbs influenza video 1918 answers
Nova 1918 Flu Video Questions
Explain to the students that the graphs show how the 1918 influenza affected the population. Have them take a few minutes to answer the questions, ...
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1918 Pandemic (H1N1 virus) | Pandemic Influenza (Flu) | CDC
The 1918 influenza pandemic was the most severe pandemic in recent history. It was caused by an H1N1 virus with genes of avian origin.
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Typhoid fever - Wikipedia
Typhoid fever, also known as typhoid, is a disease caused by Salmonella serotype Typhi bacteria. Symptoms vary from mild to severe, and usually begin six to ...
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