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A PNAS report in September 2020 confirmed that the virus is much more dangerous for the elderly than the young, noting that about 70% of all U.S. COVID-19 deaths had occurred to those over the age of 70. [94] As of early August 2020, among the 45 countries that had over 50,000 cases, the U.S. had the eighth highest number of deaths per-capita.
A COVID-19 communication hotline (0800100100) was established on 15 March 2020 which is run by the Ministry of Health and Social Services and the Centre for Disease Control of Namibia (CDC). [475] The hotline serves to answer general enquiries of the public, assisting persons seeking guidance from the Ministry and reporting possible symptoms or ...
[343] [344] Researchers recommend sampling at least 5% of COVID-19 patient samples in order to detect Omicron or other emerging variants. [345] During January 2022, in Denmark the BA.2 variant grew at ~0.10 per day (+11% per day) as a ratio to BA.1 (the legacy Omicron variant), and became the dominant strain in week 2, 2022. [160]
There were an average of 484 COVID-19 cases a day for the week that ended Aug. 11 in L.A. County, up 35% over the last month. Last summer's peak was 571 cases a day.
The January 2022 emergence of the Omicron variant, which was first discovered in South Africa, led to record highs in hospitalizations and cases in early 2022, with as many as 1.5 million new infections reported in a single day. [27] By the end of 2022, an estimated 77.5% of Americans had had COVID-19 at least once, according to the CDC. [28]
On January 20, Chinese authorities announced the confirmation that human-to-human transmission of the coronavirus had already occurred. [19] [20]The first recorded U.S. case of the new virus was also reported on January 20, in a 35-year-old American citizen traveling from Wuhan, China, to his home in Washington state.
Dr. Guarente notes that, given that much of the initial research was done in yeast and mice, it’s just now that more data is being collected in humans. Dr. Dubois adopts a more skeptical standpoint.
By 20 April 2020, the federal government stated it was conducting 150,000 tests per day, and claimed that this number would be enough to allow for schools and businesses to reopen. Health experts estimate that 500,000 to 1,000,000 tests per day would be needed to properly track the spread of the COVID-19, to avoid a new wave of infections. [213]