Can someone bring carpet beetles in your house

I’ve never seen carpet beetles in my house before but my little cousin came to my house few weeks ago and he was pestering me wanting to play on my PlayStation so I let him, he was on my bed for few hours and the next few days I keep finding these black and white ladybirds type insects, then I started searching it up and find out it’s carpet beetles and they match visually as the ones I’ve found. I’ve hoovered my room and bed but found 1-2 since then, will they keep popping up?