CDC disease detectives investigated outbreaks of hemorrhagic fever in Zaire and Sudan, later named Ebola
In 1976, patients began presenting at a rural hospital in northwest Democratic Republic of Congo (then referred to…
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The U.S. Environmental Protection Agency banned DDT
On Jun. 14, 1972, an end to the continued domestic usage of the pesticide DDT was decreed when…
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The U.S., the Soviet Union and 70 other nations signed an agreement banning biological warfare
On Apr. 10, 1972, the Biological Weapons Convention (BWC) was opened for signature, and took effect on March…
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The CDC recommended discontinuation of routine immunization and vaccination requirements for smallpoxﾠ in the US
In 1971, the U.S. Centers for Disease Control and Prevention (CDC) recommended discontinuation of routine immunization and vaccination…
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President Richard Nixon renounced the use of lethal biological agents and weapons
On Nov. 25, 1969, President Richard Nixon issued his “Statement on Chemical and Biological Defense Policies and Programs”…
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The US Department of Health transfered responsibility for quarantine to the National Communicable Disease Center
In 1967, the U.S. Department of Health, Education, and Welfare transfered responsibility for quarantine to the National Communicable…
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The Foreign Quarantine Service was transferred to CDC from the US Public Health Service
In 1967, the Foreign Quarantine Service was transferred to CDC from the U.S. Public Health Service. The CDC…
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Mary Mallon, also known as Typhoid Mary, died in quarantine on North Brother Island near New York
On Nov. 11, 1938, Mary Mallon, also known as Typhoid Mary and the first person in the U.S.,…
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First Birthday Balls to raise funds for the Warm Springs Foundation held on FDR’s birthday
On Jan. 30, 1934, the First Birthday Balls to raise funds for the Warm Springs Foundation was held…
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Denver slowly returned to normal after its flu epidemic, and schools reopened
On Jan. 2, 1919, Denver slowly returned to normal after its flu epidemic, and schools reopened. School teachers…
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January brought an Increase in influenza Epidemic in Philadelphia
Jan. 1, 1919, brought an increase in the influenza epidemic in Philadelphia and Pittsburgh. With the disease having…
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The University of Oregon began offering courses in nursing
In 1919, the University of Oregon in Eugene introduced the state’s first professional courses in nursing. The courses…
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Washington, DC one of the hardest-hit in the nation with 1918-1919 influenza pandemic
In 1919, Washington, D.C. suffered spikes in influenza cases throughout the remainder of 1918, and into early February…
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Kansas City schools reopened as the influenza epidemic waned
On Dec. 30, 1918, Kansas City schools reopened as the influenza epidemic waned. The New Year came and…
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Nebraska Board of Health made influenza a mandatory quarantine disease
On Dec. 24, 1918, on Christmas Eve, with the epidemic across Nebraska still raging, the state Board of…
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By the end of the influenza epidemic, Philadelphia had suffered 748 deaths per 100,000 people
On Dec. 15, 1918, the number of new influenza cases per day in the city slowed to a…
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Louisville Health Officer Baker implemented another influenza closure order for the city
On Dec. 12, 1918, following a second spike in influenza cases especially among schoolchildren, Louisville Health Officer Dr….
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Cincinnati Health Officer recommended regulating businesses’ hours during Influenza pandemic
On Dec. 12, 1918, following an increase in influenza cases, Cincinnati Health Officer Dr. William H. Peters recommended…
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Following another increase in influenza cases among children, the LA Board of Education ordered all public schools closed
On Dec. 10, 1918, following another increase in influenza cases among children, the Los Angeles Board of Education…
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Minneapolis officials closed more schools due to a second spike in influenza cases among children
On Dec. 3, 1918, Minneapolis officials closed more schools due to a second spike in influenza cases among…
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St. Louis experienced one of the lowest excess death rates of any city in the U.S. during the 1918-1919 influenza pandemic
in 1919, thanks to Health Commissioner Dr. Max C. Starkloff’s strong leadership in the influenza epidemic, St. Louis…
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Following a lack of success in enforcement and compliance in Denver, more stringent quarantine orders were made
On Dec. 1, 1918, following a lack of success in enforcement and compliance, the Denver mask order was…
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Kansas City closed schools again following a spike in children’s influenza cases
On Nov. 30, 1918, after having reopened schools earlier in the month, Kansas City closed schools again following…
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St. Louis health commissioner ordered another school closure, and banned children under 16 from public gatherings
On Nov. 27, 1918, after a spike in influenza cases including several children, St. Louis health commissioner Dr….
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Washington, D.C. commissioners removed restrictions on business hours related to the influenza epidemic
On Nov. 24, 1918, Washington, D.C. commissioners removed restrictions on business hours related to the influenza epidemic. Residents…
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Following an increase in influenza cases after the Armistice celebration, Denver officials issued a second closure order
On Nov. 22, 1918, following an increase in influenza cases after the Armistice celebration on November 11, Denver…
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Over 18,000 influenza cases had been reported to Detroit’s Department of Health
By Nov. 20, 1918, over 18,000 influenza cases had been reported to Detroit’s Department of Health, and almost…
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Salt Lake City business community leaders proposed methods to stem the rising cases of influenzaﾠ
On Nov. 20, 1918, School officials were eager to reopen their classrooms. Salt Lake City business and community…
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The Influenza Advisory Committee announced the end to the influenza ban in Los Angeles
On Nov. 18, 1918, the Los Angeles Influenza Advisory Committee announced the end to the influenza ban, effective…
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New Orleans officials declared the epidemic over
By Nov. 18, 1918, with New Orleans’s business and schools once again back to their normal operations, local…
