Community Exposure Assessment (Excluding Health

Community Exposure Assessment (Excluding Health

(excluding health Community Exposure Assessment care providers) Physical distance >2 Duration of interaction1 Ventilation3 Source control and PPE Risk assessment metres maintained2 Case and contact are both wearing masks (cloth or medical); OR Case is wearing both a mask (cloth or Low risk medical) and a face shield4 regardless of PPE worn by (self-monitor)5 <15 minutes (except No Regardless of contact; OR Contact is wearing both a mask and eye for very brief ventilation protection regardless of PPE worn by case interactions such as High risk passing by someone) Either case or contact is not wearing a mask (self-isolate)6 Regardless of Low risk Yes Regardless of PPE worn by either case or contact ventilation (self-monitor) Case and contact are both wearing masks (cloth or medical); OR Case is wearing both a mask (cloth or Low risk medical) and a face shield regardless of PPE worn (self-monitor) Well by contact; OR Contact is wearing both a mask and ventilated eye protection regardless of PPE worn by case No High risk Either case or contact is not wearing a mask (self-isolate) Poorly High risk Regardless of PPE worn by either case or contact ventilated (self-isolate) 15 minutes – 1 hour Well Low risk Regardless of PPE worn by either case or contact ventilated (self-monitor) Case and contact are both wearing masks (cloth or medical); OR Case is wearing both a mask (cloth or Low risk Yes medical) and a face shield regardless of PPE worn (self-monitor) Poorly by contact; OR Contact is wearing both a mask and ventilated eye protection regardless of PPE worn by case High risk Either case or contact is not wearing a mask (self-isolate) COVID-19 Info-Line 905-688-8248 press 7 Toll-free: 1-888-505-6074 niagararegion.ca/COVID19 Created December 2020. Updated September, 2021, version 6. Physical distance >2 Duration of interaction1 Ventilation3 Source control and PPE Risk assessment metres maintained2 Regardless of High risk No Regardless of what PPE was worn by contact or case ventilation (self-isolate) Case and contact are both wearing masks (cloth or medical); OR Case is wearing both a mask (cloth or Low risk medical) and a face shield regardless of PPE worn (self-monitor) Well by contact; OR Contact is wearing both a mask and Longer than 1 hour7 ventilated eye protection regardless of PPE worn by case Yes High risk Either case or contact is not wearing a mask (self-isolate) Poorly High risk Regardless of what PPE was worn by contact or case ventilated (self-isolate) Direct physical contact (eg. Hugging) and/ or exposure to bodily Regardless of High risk No Regardless of what PPE was worn by contact or case fluids and/or sharing ventilation (self-isolate) of objects, regardless of duration 1. Exposure is cumulative (eg. A single exposure or 15 minutes = multiple short interactions adding up to 15 minutes) 2. Physical distancing is considered a minimum of 2 metres. 3. Well ventilated includes outdoor spaces, large rooms (even if not equipped with a good ventilation system), or smaller rooms with windows open or otherwise equipped with a good ventilation system. Poor ventilation is considered small rooms without windows open and not otherwise equipped with a good ventilation system. 4. Individuals who are wearing a face shield instead of another form of eye protection are less likely to touch their mask and contaminate their hands. It also provides an added barrier in front of the nose and mouth which improves source control. 5. Persons who are self-monitoring can resume activities as usual while closely observing themselves for symptoms of COVID-19, including very mild symptoms. They should be instructed to isolate immediately if they develop symptoms and to be tested as soon as possible. 6. Persons who are self-isolating are to stay at home for 10 days. They are not to attend work, school or any other public places. If a person has had a high-risk exposure but is fully vaccinated (i.e. it has been more than 14 days since completing the vaccination series), or was previously positive for COVID-19 within the last 90 days and has since been cleared, they may not need to self- isolate unless they become symptomatic. Testing on day 7 after the last exposure is strongly recommended or sooner if they become symptomatic. 7. Also applies to a scenario where a case is in a space for greater than 1 hour, and is then joined by the contact for 15 minutes or longer. This is due to the potential build up of aerosols in the air, which increases the risk to the contact. *Please note these are general recommendations and can vary on a case by case basis as determined by Public Health..

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