# data[].attributes.body
Alam, Dr. Mariam, et al. “Flu Now Considered Epidemic in US as Hospitalizations Climb during Peak Season.” ABC News, ABC News Network, abcnews.go.com/Health/flu-now-considered-epidemic-us-hospitalizations-climb-peak/story?id=52305172.

Casalegno, Jean-Sebastien, et al. “Performance of Influenza Case Definitions for Influenza Community Surveillance: Based on the French Influenza Surveillance Network GROG, 2009-2014.” Eurosurveillance, European Centre for Disease Prevention and Control, 6 Apr. 2017, www.eurosurveillance.org/content/10.2807/1560-7917.ES.2017.22.14.30504.

“History of Influenza.” HowStuffWorks, 5 Aug. 2005, health.howstuffworks.com/diseases-conditions/cold-flu/history-of-influenza.htm.

“Influenza (Flu).” Centers for Disease Control and Prevention, 19 Oct. 2018, www.cdc.gov/flu/weekly/overview.htm.

“Influenza Pandemic of 1918 Facts for Kids.” Kiddle, kids.kiddle.co/Influenza_pandemic_of_1918.

“Last Year Was the Worst Season for Influenza Mortality in Decades.” RESPECTFUL INSOLENCE, 5 Nov. 2018, respectfulinsolence.com/2018/09/27/last-year-was-the-worst-season-for-influenza-mortality-in-decades/.

Moore, Zack. “Outbreak Investigations: The 10-Step Approach.” North Carolina Division of Public Health, epi.publichealth.nc.gov/cd/lhds/manuals/cd/training/Module_1_1.6_ppt_OutbreakInvestigation.pdf.

“Morbidity and Mortality Weekly Report (MMWR).” Centers for Disease Control and Prevention, Centers for Disease Control and Prevention, 15 Feb. 2018, www.cdc.gov/mmwr/volumes/67/wr/mm6706a2.htm.

Taubenberger, Jeffery K, et al. “Discovery and Characterization of the 1918 Pandemic Influenza Virus in Historical Context.” Antiviral Therapy, U.S. National Library of Medicine, 2007, www.ncbi.nlm.nih.gov/pmc/articles/PMC2391305/.

# data[].attributes.body
A Publix employee (Mark) was in his 40s and lived a healthy, happy life.  He always had a smile on his face at work and encouraged others to do better.  One day, he got the flu, and, unfortunately, his body was unable to fight it.  He died due to that virus.

# data[].attributes.body
With the three-day flu becoming a normality in the hospitals, many soldiers died around the world during the pandemic.

# data[].attributes.body
1918 flu affected over 500 million people across the world and spread across countries.  This could potentially become an epidemic in the United States as the influenza shot in 2017 was not effective enough to fight a rapidly mutating virus.

# data[].attributes.body
The most popular hypothesis about the cause of influenza was that it had to be a disease-causing virus.

# data[].attributes.body
Comparison of case definitions were used to perform a surveillance on frequency of ILIs and actual influenza.

# data[].attributes.body
The disease was discovered through an outbreak, and isolating the virus allowed identification of the cause (influenza) to occur.  "ILI is defined as fever (temperature of 100°F [37.8°C] or greater) and a cough and/or a sore throat without a known cause other than influenza."

# data[].attributes.body
Determinants in 1918: HAhemagglutinin

NAneuraminidase
Determinants 2017:
an HA glycosylation site was lost in the vaccine strain during egg adaptation, human antibodies struggled to neutralize the virus.