SARS-CoV-2 Transmission - Air distance, air currents, duration in air, humidity, airborne transmission, duration on objects and surfaces, floor
The coronavirus COVID-19 is affecting
213 countries and territories around the world and 2 international conveyances. The day is reset after midnight GMT+0. The list of countries and territories and their continental regional classification is based on the United Nations Geoscheme. Sources are provided under "Latest Updates". Learn more about Worldometer's COVID-19 data
"Since May 13, 2020, the SI-DEP system (screening information system) allows an estimate of the numbers of confirmed cases in France for exhaustive purposes. The cases confirmed using the SI-DEP system are taken into account in the total number of cases which will now be updated with this new surveillance system. Today's results indicate a total of positive cases lower than the total announced the previous 3 days (-766 cases in 24 hours). This is due to the fact that so far we had the number of positive COVID-19 tests for SI-DEP, but we now have the number of positive patients, which is more accurate." [source]
As a consequence of this change on June 2, and the removal, on the same day, of the EHPAD and EMS Probable Case count on the official French Government Dashboard [source], we have revised France's time series accordingly by removing the EHPAD and EMS probable cases on the understanding that this new counting method (and its resulting total number of cases) has been determined by the French Government to be "more accurate." [source]
NOTE from the Massachusetts Department of Public Health:
"Today, the Department of Public Health will begin reporting both confirmed and probable COVID-19 cases and deaths. This change is in accordance with guidance from the Centers for Disease Control to include “probable” COVID-19 cases and deaths in data collection and reporting efforts. This change will increase the number of cases and deaths reported in Massachusetts. Today’s newly reported totals are a result of a retrospective review of probable cases and deaths dating back to March 1, 2020.
Probable cases are individuals who have not been tested by the standard viral (molecular) test. They have either 1) had a positive antibody test and either had COVID symptoms or were likely to be exposed to a positive case or 2) did not have an antibody test but had COVID symptoms and were known to be exposed to a positive case. Probable cases also include individuals whose death certificate listed COVID-19 as a cause of death but who were not tested.
Also included is data on the total number daily and cumulative COVID-19 antibody tests performed.
Antibody tests are blood tests used to determine if a person had COVID-19 in the past and now has antibodies against the virus.
Molecular, or viral, testing, which is performed by nasal swab, is conducted to determine if an individual is currently infected with COVID-19.
Since the beginning of the pandemic, DPH has reported on the number of confirmed cases and deaths that had a POSITIVE COVID-19 molecular test result." [source]