
Challenges with Early Screening for COVID-19

There needs to be a better way to test quickly and comfortably
Inaccurate results with low and medium viral infections (viral loads)
Uncomfortable, kids resist
Accidents can and do happen
Expensive personnel costs to administer and manage
Too time consuming to administer at events and public venues
Difficult to get accurate data into cloud reporting systems
The Timing of COVID-19 Symptoms

Cough
(starts from day 5-6)

Fever
(starts from day 5-6)

New loss of taste or smell*
(starts from day 1-3)

Muscle aches
(starts from day 5-6)

Vomiting or diarrhea
(starts from day 5-6)
The COVID-19 Testing Gap…

Thermometers:
Fever appears after day 5-6 in only 60-70% of population.
Inexpensive but little value as people with fever and other symptoms usually stay at home.

Antigen Testing:
Most accurate on symptomatic people from week 2 after infection
Not accurate in the first week after infection.
Expensive to administer and get data into the cloud.

PCR Testing:
Gold standard but very costly & time consuming to detect low viral loads.
Primarily used by doctors for diagnosis, not a good fit for early screening.

The current testing methods do not properly screen for asymptomatic people.

Source: Human Physiology Academy

Source: Journal of Neurochemistry
Why the Sense of
Smell Is Impacted
First By SARS-CoV-2
Virus enters nose cavity and accumulates in ACE2 Receptors
From Day 2 your sense of smell is compromised
Human brain does not recognize this at first
Smell tests can detect this partial smell loss called hyposmia
How it works?
A paper card is provided with very specialized smells proven to be associated with COVID-19 and optimized by region/ethnicity.


Users scratch and smell. Based on years of research, the test checks for hyposmia (partial smell loss) which is discernible in the early stage of COVID-19.
A short questionnaire is completed and then processed using AI to issue a PASS or FAIL to the user.

Video Presentation – Short Version. January 11, 2022. Length 10:41.
Video Presentation – Long Version. December 12, 2021. Length 25:24.
Testing Frequency Protocols
Cloud-based Reporting





Certifications & Registrations
Class 1 Medical Device in USA, Canada, EU & Mexico
Currently under registration process in multiple other countries






User Screening and Pass Authenticator Apps
Available in 17 languages including English, most European languages,
Hindi and more coming soon.
Hindi and more coming soon.


Corowell Screening App

Corowell Pass Authenticator

Applications

Restaurants

Schools & Universities

Cruises & Tours

Workplace & Buildings

Stadiums & Festivals

Bus, Train and Plane
Terminals
Terminals
Quickly screen everyone and only antigen test those who fail the smell screening test
Make data-led crowd management decisions by keeping track of live test data at your event or building in real time with our digital monitoring system.

Key Benefits Summary
30,000 formal tests completed
Version 1.0 is 96.8% accurate compared to PCR
465 validation trials only 1 False Negative
Fast & accurate. 1-minute, self-administered thru app.
Non-invasive.
Fun. Kids love them & have fun getting tested.
Safer than nasal swabs.
Scalable, reliable data and analytics.
No medical staff needed to deliver.
10+ year shelf life.
Opu Labs is An Authorized Direct Representative of Corowell.
Contact us to discuss your current and desired protocols,
timing and to place a trial order

