COVID-19 Fatality Rates by Month | CFR and IFR Time Lag Adjusted

This video shows the COVID-19 fatality rates, Case Fatality Rate (CFR) and Infection Fatality Rate (IFR) by month from March 2020 to April 2022.

Countries included: Europe, USA, Canada, Australia, New Zealand, South Korea and Japan.

CFR is calculated as the number of Covid-19 deaths in percentage of number of CONFIRMED Covid-19 cases.
IFR is calculated as the number of Covid-19 deaths in percentage of number of ESTIMATED Covid-19 cases.

CFR and IFR are adjusted for the time lag between first day of infection and time of death, to better reflect the real rate for each month. The average time between infection and death is about 14 days, but at the same time reporting of infections are delayed and there are usually incubation time before testing. The time lag used here is therefor 7 days (i.e. deaths from January 8th to February 7th divided by infections in January).

Variants of concern (VOC) are shown as first documented in the world, and should not to be confused with sequencing in the countries included. For instance Delta variant was first documented early on in India, but did become the dominant variant in other countries much later.

Sources:
IHME, CSSE.

Music:
Omega by Scott Buckley – www.scottbuckley.com.au
Special intro background effect by:
AA VFX: https://www.youtube.com/c/dvdangor2011/
Data visualization created with flourish.studio