Sources of Information .
State daily reports
https://covidtracking.com/
Best source of accurate state data until March 2021.
International Map
https://coronavirus.jhu.edu/map.html
Best source for international data, US data sources not disclosed and are higher than reported by the states.
CDC provisional death counts for Covid-19
https://www.cdc.gov/nchs/nvss/vsrr/covid19/index.htm
CDC Wonder database system, research historic data 1968 - 2016
https://wonder.cdc.gov/cmf-icd10.html
CDC Vaccine Adverse Reaction Reporting System (VAERS)
https://wonder.cdc.gov/vaers.html
National Vaccine Information Center
https://www.nvic.org/vaccines-and-diseases/Influenza/vaccine-history.aspx
https://www.nvic.org/vaccines-and-diseases/Reports/covid-19.aspx