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Linguistic map of Czechoslovakia in 1930 The new country was a multi-ethnic state, with Czechs and Slovaks as constituent peoples . The population consisted of Czechs (51%), Slovaks (16%), Germans (22%), Hungarians (5%) and Rusyns (4%). [ 17 ]
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The First Czechoslovak Republic emerged from the collapse of the Austro-Hungarian Empire in October 1918. The new state consisted mostly of territories inhabited by Czechs and Slovaks, but also included areas containing majority populations of other nationalities, particularly Germans (22.95 %), who accounted for more citizens than the state's second state nation of the Slovaks, [1] Hungarians ...
People with the COVID-19 infection may have different symptoms, and their symptoms may change over time. Three common clusters of symptoms have been identified: a respiratory symptom cluster with cough, sputum , shortness of breath , and fever; a musculoskeletal symptom cluster with muscle and joint pain, headache, and fatigue; and a cluster of ...
The most recent COVID-19 vaccine should offer protection against the XEC variant, Russo says. “The most recent version of the vaccine seems to be reasonably well-matched,” he says.
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 the U.S. state of North Dakota, in 1931.
While new variants of SARS-CoV-2, the virus that causes COVID-19, have come and gone in the five years the illness has circulated the globe, its array of symptoms hasn’t evolved as swiftly.
1918 Flu: Influenza A/H1N1: 17–100 million 1–5.4% of global population [4] 1918–1920 Worldwide 2 Plague of Justinian: Bubonic plague 15–100 million 25–60% of European population [5] 541–549 North Africa, Europe, and Western Asia 3 HIV/AIDS pandemic: HIV/AIDS: 44 million (as of 2025) – 1981–present [6] Worldwide 4 Black Death ...