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Pneumonia is a common respiratory infection, [2] affecting approximately 450 million people a year and occurring in all parts of the world. [3] It is a major cause of death among all age groups, resulting in 1.4 million deaths in 2010 (7% of the world's yearly total) and 3.0 million deaths in 2016 (the 4th leading cause of death in the world).
As of June 2022, Omicron had about 50 mutations relative to the Wuhan-Hu-1 or B variant, [125] [126] which is more than any previous SARS-CoV-2 variant. Thirty-two of these pertained to the spike protein, which most vaccines target to neutralise the virus. [127] As of December 2021, many mutations were novel and not found in previous variants. [43]
His lab has found that boosters improve immunity against omicron 20-fold. Everyone 5 and older are eligible to get one booster and people older than 50, or who are severely immunocompromised, are ...
Weekly confirmed COVID-19 deaths Map of cumulative COVID-19 death rates by US state. [1]The CDC publishes official numbers of COVID-19 cases in the United States. The CDC estimates that, between February 2020 and September 2021, only 1 in 1.3 COVID-19 deaths were attributed to COVID-19. [2]
Pneumococcal pneumonia kills about 1 in 20 older adults infected with the bacteria, according to the CDC. Roughly 100 known strains of pneumococcus bacteria can also cause ear infections ...
The Omicron subvariants seem like an alphabet soup of letters and numbers. The original Omicron variant was called B.1.1.529 . It begat such subvariants as BA.1; BA.1.1; BA.2; BA.2.12.1; BA.3; and ...
Worldwide timelines by month and year [ edit ] The 2019 and January 2020 timeline articles include the initial responses as subsections, and more comprehensive timelines by nation-state are listed below this section.
That healthy 30-year-old can spread COVID unwittingly to someone at high risk, including a loved one. So decisions about risk need to account for risk to others,” Wachter wrote.