Yawn. Read what you wrote and that's your response. But they can smell cancer, even aids.

Instead you're denying dogs smell because you don't believe in COVID? Dumbass

What are sniffer dogs. I mean what are they?

Stop being ignorant.

COVID is still a medical condition. One that dogs react too. They know their prey. Wolves example pick the weakest in the herd. The sickest. Until you find this with most dogs around the sick. Many are standoffish, or behave different, requiring further training. They can smell disease. There are cancer sniffer dogs, believe it or not. Renal another one. Redundant because you still need a proper diagnosis regardless.

Yawn. Read what you wrote and that's your response. But they can smell cancer, even aids.

Instead you're denying dogs smell because you don't believe in COVID? Dumbass

What are sniffer dogs. I mean what are they?

Stop being ignorant