sars-cov-2 antigen rapid test nasal swab for self testing with a swab and test cassette with negative result between toy bricks

analysis antigen bricks child childhood children closeup concept consequences corona coronavirus cotton covid19 danger disposable epidemic equipment health hospital illness influence isolated laboratory macro medical medicine microbiology nasal negative nose pandemic play quarantine rapid research sample sarscov2 science scientific self singleuse specimen sunlight swab test testing toy tube virus waste white