timeline of the covid-19 pandemic timeline of the covid-19 pandemic the timeline of the covid-19 pandemic lists the articles containing the chronology and epidemiology of sars-cov-2, the virus that causes the coronavirus disease 2019 (covid-19) and is responsible for the covid-19 pandemic. main article: covid-19 pandemic the first human cases of covid-19 were identified in wuhan, people's republic of china, in december 2019. the world health organization declared the covid-19 outbreak a public health emergency of international concern on 30 january 2020, and a pandemic on 11 march 2020. at this moment (october 2022), we cannot conclusively determine precisely how humans in mainland china were initially or previously infected with the virus, called sars-cov-2. furthermore, some developments may become known or fully understood only in retrospect. interactive map of confirmed covid-19 cases per million people. click the play button in the top left to interact with the map. on mobile devices, use landscape mode (i.e. rotate your device) and drag the slider at the top of the infographic. worldwide timelines by month and year the 2019 and january 2020 timeline articles include the initial responses as subsections, and more comprehensive timelines by nation-state are listed below this section. casesdeaths the following are the timelines of the covid-19 pandemic respectively in: 2019 2020 january 2020 february 2020 march 2020 april 2020 may 2020 june 2020 july 2020 august 2020 september 2020 october 2020 november 2020 december 2020 2021 january 2021 february 2021 march 2021 april 2021 may 2021 june 2021 july 2021 august 2021 september 2021 october 2021 november 2021 december 2021 2022 january 2022 february 2022 march 2022 april 2022 may 2022 june 2022 july 2022 august 2022 september 2022 october 2022 november 2022 december 2022 2023 january 2023 february 2023 march 2023 april 2023 may 2023 responses the following are responses to the covid-19 pandemic respectively in: 2020 january 2020 february 2020 march 2020 april 2020 may 2020 june 2020 july 2020 august 2020 september 2020 october 2020 november 2020 december 2020 2021 january 2021 february 2021 march 2021 april 2021 may 2021 june 2021 july 2021 august 2021 september 2021 october 2021 november 2021 december 2021 2022 january 2022 february 2022 march 2022 april 2022 may 2022 june 2022 july 2022 august 2022 september 2022 october 2022 timeline by country