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The virus is a novel strain of the influenza virus, [2] for which existing vaccines against seasonal flu provided no protection. A study at the U.S. Centers for Disease Control and Prevention (CDC) published in May 2009 found that children had no preexisting immunity to the new strain but that adults, particularly those over 60, had some degree of immunity.
It's flu season right now, and the U.S. is in the midst of a wave that's straining hospitals. But not all influenza is the same. There are some notable differences between flu A and flu B strains ...
The 1918 flu was an unusually severe and deadly strain of H1N1 [12] avian influenza, which killed from 17 [13] to 50 or more million people worldwide over about a year in 1918 and 1920. It was one of the deadliest pandemics in human history .
In 1976, an outbreak of the swine flu, influenza A virus subtype H1N1 at Fort Dix, New Jersey caused one death, hospitalized 13, and led to a mass immunization program. After the program began, the vaccine was associated with an increase in reports of Guillain–Barré syndrome (GBS), which can cause paralysis, respiratory arrest, and death.
Influenza and pneumonia combined are the ninth leading cause of death in the U.S., killing tens of thousands of people a year, according to the CDC. Flu virus can raise heart attack risk
Daskalakis said up to 160,000 older adults get hospitalized for RSV every year, which translates to 6,000 to 10,000 RSV-related deaths per year among people over age 65. What you can do about it
A United Kingdom investigation of risk factors for hospitalisation and poor outcome with pandemic A/H1N1 influenza looked at 631 patients from 55 hospitals admitted with confirmed infection from May through September 2009. 13% were admitted to a high dependency or intensive care unit and 5% died; 36% were aged <16 years and 5% were aged ≥65 ...
Ah, January. The season of new beginnings, icy winds, and respiratory infections. With a “quad-demic” of diseases circulating the country—flu, COVID, respiratory syncytial virus (RSV), and ...