Disease Burden of Flu
The burden of flu in the U.S. can vary widely and is determined by a number of factors including the characteristics of circulating viruses, the timing of the season, how well the vaccine is working to protect against illness, and how many people got vaccinated. While the impact of flu varies, it places a substantial burden on the health of people in the United States each year.
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Carga de la enfermedad de la influenza
Each year CDC estimates the burden of influenza in the U.S. CDC uses modeling to estimate the number of influenza illnesses, medical visits, flu-associated hospitalizations, and flu-associated deaths that occur in the U.S. in a given season. The methods used to calculate these estimates are described on CDC's webpage, How CDC Estimates the Burden of Seasonal Influenza in the U.S.
Los CDC usan los cálculos de la carga de la influenza sobre la población y el impacto de la vacunación contra la influenza para difundir políticas y comunicaciones relacionadas con esta enfermedad.
CÁLCULOS APROXIMADOS DE LA CARGA DURANTE LA TEMPORADA DE INFLUENZA 2017-2018
CDC calculates estimates of disease burden in the United States using surveillance data and modeling to adjust for sources of under-detection.
HOW CDC ESTIMATES THE BURDEN OF FLU
CDC uses modeling to estimate the number of influenza illnesses, medical visits, flu-associated hospitalizations, and flu-associated deaths that occur in the U.S. in a given season.
POR QUÉ LOS CDC CALCULAN LA CARGA DE LA INFLUENZA
Los CDC usan los cálculos de la carga de la influenza sobre la población y el impacto de la vacunación contra la influenza para difundir políticas y comunicaciones relacionadas con esta enfermedad.
Estimated Range of Annual Burden of Flu in the U.S. since 2010
The burden of influenza disease in the United States can vary widely and is determined by a number of factors including the characteristics of circulating viruses, the timing of the season, how well the vaccine is working to protect against illness, and how many people got vaccinated. Aunque el impacto de la influenza varía, implica una importante carga en la salud de las personas en los Estados Unidos cada año.
CDC estimates that influenza has resulted in between 9.3 million – 49 million illnesses, between 140 000 – 960 000 hospitalizations and between 12 000 – 79 000 deaths annually since 2010.
| Symptomatic Illnesses | Medical Visits | Hospitalizaciones | Muertes | |||||
|---|---|---|---|---|---|---|---|---|
| Temporada | Estimate | 95% Cr I | Estimate | 95% Cr I | Estimate | 95% Cr I | Estimate | 95% Cr I |
| 2010-2011 | 21 000 000 | (20 000 000 – 25,000,000) | 10 000 000 | (9,300,000 – 12,000,000) | 290 000 | (270 000 – 350,000) | 37 000 | (32 000 – 51,000) |
| 2011-2012 | 9 300 000 | (8,700,000 – 12,000,000) | 4 300 000 | (4,000,000 – 5,600,000) | 140 000 | (130 000 – 190,000) | 12 000 | (11 000 – 23,000) |
| 2012-2013 | 34 000 000 | (32 000 000 – 38,000,000) | 16 000 000 | (15 000 000 – 18,000,000) | 570 000 | (530 000 – 680,000) | 43 000 | (37 000 – 57,000) |
| 2013-2014 | 30 000 000 | (28 000 000 – 33,000,000) | 13 000 000 | (12 000 000 – 15,000,000) | 350 000 | (320 000 – 390,000) | 38 000 | (33 000 – 50,000) |
| 2014-2015 | 30 000 000 | (29 000 000 – 33,000,000) | 14 000 000 | (13 000 000 – 16,000,000) | 590 000 | (540 000 – 680,000) | 51 000 | (44 000 – 64,000) |
| 2015-2016 * | 25 000 000 | (24 000 000 – 28,000,000) | 12 000 000 | (11 000 000 – 13,000,000) | 310 000 | (290 000 – 340,000) | 25 000 | (21 000 – 31,000) |
| 2016-2017 * | 30 000 000 | (28 000 000 – 32,000,000) | 14 000 000 | (13 000 000 – 16,000,000) | 580 000 | (520 000 – 660,000) | 51 000 | (44 000 – 64,000) |
| 2017-2018 * | 49 000 000 | (46 000 000 – 53,000,000) | 23 000 000 | (21 000 000 – 25,000,000) | 960 000 | (870 000 – 1,100,000) | 79 000 | (69 000 – 99,000) |
* Estimates from the 2015-2016, 2016-2017, and 2017-2018 seasons are preliminary and may change as data are finalized.
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