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  2. File:Flag map of Czechoslovakia (1918-1938).svg - Wikipedia

    en.wikipedia.org/wiki/File:Flag-map_of...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  3. Impact of the COVID-19 pandemic on children - Wikipedia

    en.wikipedia.org/wiki/Impact_of_the_COVID-19...

    [3] [11] [12] [13] Several explanations contributing to the milder COVID-19 symptoms experienced by children have been suggested, including: a lower expression of ACE-2 (the receptor used by SARS-CoV-2 for cell entry) in the respiratory tract in younger children; viral interference, e.g. by other coronaviruses; cross-reactive immune responses ...

  4. Symptoms of COVID-19 - Wikipedia

    en.wikipedia.org/wiki/Symptoms_of_COVID-19

    Symptoms of COVID-19. Some less common symptoms of COVID-19 can be relatively non-specific; however the most common symptoms are fever, dry cough, and loss of taste and smell. [1] [22] Among those who develop symptoms, approximately one in five may become more seriously ill and have difficulty in breathing.

  5. History of coronavirus - Wikipedia

    en.wikipedia.org/wiki/History_of_coronavirus

    The history of coronaviruses is an account of the discovery of the diseases caused by coronaviruses and the diseases they cause. It starts with the first report of a new type of upper-respiratory tract disease among chickens in North Dakota, U.S., in 1931.

  6. COVID-19 pandemic - Wikipedia

    en.wikipedia.org/wiki/COVID-19_pandemic

    The World Health Organization (WHO) declared the outbreak a public health emergency of international concern (PHEIC) on 30 January 2020, and assessed the outbreak as having become a pandemic on 11 March. [3] COVID-19 symptoms range from asymptomatic to deadly, but most commonly include fever, sore throat, nocturnal cough, and fatigue.

  7. List of epidemics and pandemics - Wikipedia

    en.wikipedia.org/wiki/List_of_epidemics_and...

    12 Hong Kong flu: Influenza A/H3N2: 1–4 million – 1968–1969 Worldwide 10 1918–1922 Russia typhus epidemic: Typhus: 2–3 million 1–1.6% of Russian population [14] 1918–1922 Russia: 13 Cocoliztli epidemic of 1576: Cocoliztli 2–2.5 million 50% of Mexican population [12] 1576–1580 Mexico 14 1772–1773 Persian Plague: Bubonic ...

  8. History of Czechoslovakia - Wikipedia

    en.wikipedia.org/wiki/History_of_Czechoslovakia

    Although Czechoslovakia was the only central European country to remain a parliamentary democracy during the entire period 1918 to 1938, [11] it faced problems with ethnic minorities such as Hungarians, Poles and Sudeten Germans, which made up the largest part of the country's German minority.

  9. COVID-19 pandemic in the Czech Republic - Wikipedia

    en.wikipedia.org/wiki/COVID-19_pandemic_in_the...

    The COVID-19 pandemic in the Czech Republic was a part of the worldwide pandemic of coronavirus disease 2019 caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). On 12 January 2020, the World Health Organization (WHO) confirmed that a novel coronavirus was the cause of a respiratory illness in a cluster of people in Wuhan ...