3d illustration
alert
amber
attention
awareness
beware
breathing
bright
careful
caution
danger
disease
electric
epidemic
health
health care
hospital
illness
intersection
light
mask
n95
pandemic
precaution
pulmonary
respect
respiratory
safety
sign
stop
stop light
symbol
symbolic
traffic
traffic light
traffic signs
trafficlight
transportation
vaccine
virus infection
warning
yellow
yellow light