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PRECLINICAL TESTING: Scientists test a new vaccine on cells and then give it to animals such as mice or monkeys to see if it produces an immune response. The development cycle of a vaccine, from lab to clinic. For an explanation of leading vaccines, see How Nine Covid-19 Vaccines Work. For treatments for Covid-19, see our Coronavirus Drug and Treatment Tracker. For an explanation of virus variants and mutations, see our Coronavirus Variant Tracker. They may not reflect the true extent of geographic spread of COVID-19.Below is a list of all vaccines that have reached trials in humans. Weekly activity level assessments are intended to provide a high-level overview of COVID-19 spread using standard indicators at the national and PT level. It’s possible that if there are outbreaks occurring in one area, it may result in a higher level of COVID-19 activity.

There may be variations in the COVID-19 activity across a jurisdiction.

PT testing practices, data sources and reporting to PHAC vary across jurisdictions.

Data are updated on an ongoing basis and are subject to change.

Weekly changes in tests performed, and LTCF outbreaks reflect changes in counts between the end of the latest epidemiological week and the end of the previous epidemiological week.

For more up to date information and for public health recommendations or risk assessments, please refer to PT websites.

This information is based on data from PT partners.

Overall trajectory, or the direction of change (based on 10% change compared to the previous week), is calculated based on the mode of the trajectories from available indicators.ĭata assessment caveats: The overall COVID-19 activity level is assessed based on the following three indicators, where available:.

Overall activity level is then determined using the average level of the available indicators (rounding to the nearest whole number).

Each indicator is assigned a level ranging from ‘no activity detected’ (level 0) to ‘very high activity’ (level 4), based on established thresholds (increasing, decreasing, or no change) of a change of 10% or more compared to the previous week.

Note: This indicator is used to provide information on overall trajectory only.Īssessment process: The overall COVID-19 activity level is assessed based on the following three indicators, where available:.

Trajectory of weekly COVID-19 wastewater viral levels compared to the previous week.

Note: This indicator is used to provide information on overall activity level and trajectory.

Weekly number of LTCF outbreaks / Total population in jurisdiction x 1,000,000.

Weekly long term care facility (LTCF) outbreaks per 1,000,000 population.

This indicator is used to provide information about overall activity level and trajectory. Note: This indicator is only incorporated into overall assessment if the testing rate is greater than or equal to 100 tests per 100,000 population per week.Weekly number of lab positive tests / Weekly total number of tests x 100.Indicators: The overall COVID-19 activity level is assessed based on the following three indicators, where available: They are presented with the overall change (increase, decrease, no change) from the previous week. Based on these indicators, COVID-19 activity can range from level 0 (no activity) to level 4 (high activity). National COVID-19 activity levels were developed with PT partners to monitor COVID-19 activity at the national and PT levels using a standard set of core indicators. COVID-19 activity level technical notes and definitionsĬOVID-19 activity levels are based on data from provincial and territorial (PT) partners.