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1900-1950
21 entries
1918 Spanish Flu
The 1918 Spanish flu pandemic was caused by the H1N1 influenza A virus and infected approximately 500 million people wor...
Typhoid Mary
Mary Mallon, known as Typhoid Mary, was the first identified asymptomatic carrier of typhoid fever in the United States....
Spanish Flu Philadelphia
The 1918 Spanish Flu hit Philadelphia with devastating force. On September 28, 1918, the city held a Liberty Loan parade...
Typhus Concentration Camps
Epidemic typhus, caused by Rickettsia prowazekii and transmitted by body lice, devastated concentration camp prisoners d...
Polio US 1916
The 1916 polio epidemic in New York City was the first major polio outbreak in the United States. The epidemic caused ap...
Rift Valley Fever
Rift Valley Fever RVF is a viral zoonosis that primarily affects animals but can infect humans. The virus was first iden...
1918 Flu W Shaped
A distinctive feature of the 1918 Spanish Flu was the W shaped mortality curve. Typical influenza pandemics produce a U ...
Radium Girls
The Radium Girls were female factory workers who contracted radiation poisoning from painting watch dials with self lumi...
Spanish Flu WWI
The global spread of the 1918 Spanish Flu was dramatically accelerated by World War I troop movements. The first wave in...
Herd Immunity
Herd immunity, also called community immunity, occurs when a sufficient proportion of a population is immune to an infec...
AMR Antimicrobial Resistance
Antimicrobial resistance AMR is one of the top global public health threats. Bacteria, viruses, fungi, and parasites evo...
Spanish Flu China
The 1918 Spanish Flu may have originated in northern China, not Europe. Historian Mark Humphries found archival evidence...
Yellow Fever Panama
Yellow fever and malaria devastated both French and American canal construction efforts in Panama. The French effort led...
Meningitis Belt
The African Meningitis Belt spans approximately 26 countries from Senegal to Ethiopia, home to 450 million people. Epide...
Pellagra South
Pellagra, caused by niacin vitamin B3 deficiency, reached epidemic proportions in the American South in the early 20th c...
Spanish Flu Brazil
The 1918 Spanish Flu devastated Brazil, with estimates of deaths as high as 300,000 in a population of approximately 30 ...
1918 Flu St Louis
St Louis is frequently cited as an example of early pandemic response. When the first Spanish Flu cases appeared in earl...
Westerly Poliomyelitis
The 1949 polio outbreak in the US was one of the worst before vaccine availability. Approximately 42,000 cases were repo...
HIV Origin Kinshasa
Genetic studies suggest HIV 1 group M crossed from chimpanzees to humans in southeastern Cameroon in the early 20th cent...
Spanish Flu Inuit
The 1918 Spanish Flu devastated Indigenous populations globally. In Alaska, some Alaska Native villages were nearly wipe...
Spanish Flu Indigenous
Indigenous populations suffered disproportionate mortality during the 1918 Spanish Flu. In Labrador, approximately one t...