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Get the latest research information from NIH: https://www.nih.gov/coronavirus
Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/
Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1797 | 1 |
| 1798 | 1 |
| 1814 | 1 |
| 1830 | 1 |
| 1838 | 1 |
| 1862 | 1 |
| 1863 | 1 |
| 1883 | 3 |
| 1885 | 1 |
| 1887 | 2 |
| 1889 | 3 |
| 1890 | 1 |
| 1893 | 1 |
| 1900 | 1 |
| 1902 | 1 |
| 1904 | 1 |
| 1905 | 2 |
| 1908 | 2 |
| 1909 | 2 |
| 1910 | 1 |
| 1913 | 1 |
| 1915 | 1 |
| 1916 | 1 |
| 1919 | 2 |
| 1920 | 2 |
| 1921 | 1 |
| 1922 | 1 |
| 1923 | 2 |
| 1924 | 1 |
| 1925 | 5 |
| 1926 | 8 |
| 1927 | 7 |
| 1928 | 8 |
| 1929 | 5 |
| 1930 | 8 |
| 1931 | 5 |
| 1932 | 8 |
| 1933 | 9 |
| 1934 | 16 |
| 1935 | 7 |
| 1936 | 5 |
| 1937 | 3 |
| 1938 | 3 |
| 1939 | 2 |
| 1940 | 3 |
| 1941 | 5 |
| 1942 | 3 |
| 1943 | 1 |
| 1944 | 4 |
| 1945 | 10 |
| 1946 | 16 |
| 1947 | 23 |
| 1948 | 25 |
| 1949 | 26 |
| 1950 | 40 |
| 1951 | 61 |
| 1952 | 70 |
| 1953 | 71 |
| 1954 | 70 |
| 1955 | 72 |
| 1956 | 65 |
| 1957 | 72 |
| 1958 | 52 |
| 1959 | 78 |
| 1960 | 87 |
| 1961 | 88 |
| 1962 | 94 |
| 1963 | 129 |
| 1964 | 113 |
| 1965 | 138 |
| 1966 | 133 |
| 1967 | 140 |
| 1968 | 151 |
| 1969 | 147 |
| 1970 | 159 |
| 1971 | 181 |
| 1972 | 192 |
| 1973 | 190 |
| 1974 | 191 |
| 1975 | 194 |
| 1976 | 184 |
| 1977 | 219 |
| 1978 | 222 |
| 1979 | 264 |
| 1980 | 229 |
| 1981 | 284 |
| 1982 | 263 |
| 1983 | 286 |
| 1984 | 257 |
| 1985 | 280 |
| 1986 | 322 |
| 1987 | 352 |
| 1988 | 440 |
| 1989 | 394 |
| 1990 | 409 |
| 1991 | 438 |
| 1992 | 458 |
| 1993 | 462 |
| 1994 | 462 |
| 1995 | 583 |
| 1996 | 571 |
| 1997 | 670 |
| 1998 | 762 |
| 1999 | 863 |
| 2000 | 1469 |
| 2001 | 1300 |
| 2002 | 1464 |
| 2003 | 2120 |
| 2004 | 2683 |
| 2005 | 2893 |
| 2006 | 3169 |
| 2007 | 3468 |
| 2008 | 3669 |
| 2009 | 3891 |
| 2010 | 4212 |
| 2011 | 4433 |
| 2012 | 4699 |
| 2013 | 4979 |
| 2014 | 7051 |
| 2015 | 8634 |
| 2016 | 9011 |
| 2017 | 9162 |
| 2018 | 9578 |
| 2019 | 9958 |
| 2020 | 10865 |
| 2021 | 814 |