system
Given the following post, respond as if you're commenting on Reddit:
human
How do eyelash microorganisms get to a newborn?

All people have eyelash microorganisms, but I don’t think they are born with them. How do they populate a newborn?

Edit—I was referring to the mites that exist near eyelashes, but I’m also curious about other microorganisms as well! Thank you for all of these detailed and thoughtful responses. The human body is cool:
gpt
If you are talking about the skin microbiome (this is the germs / microbes on all skin and eyelashes) then babies obtain a lot of their microbiome from their mother during birth. They they will have additional colonisation through any skin to skin contact as well as their food. This microbiome is made up of lots of different types of microbes and millions of each and transfer very easily. 

If you are talking about eyelash mites, eyelash mites can also live on general skin. These are transferred from people with them on their skin / hairs / eyelashes to the hair / eyelashes on a newborn by touch. Keep in mind that everyone has hair all over so this could be to anywhere on the baby and they can then move. It is also worth noting that not everyone has these mites and the same goes for newborns.