Chirality Could Kill Us All, If We Let It

A completely "mirrored" organism is not that dangerous.

- It would still have antigenic properties, just not the ones we are familiar with.

- It can't eat any ordinary food. Common proteins and sugars won't fit it's enzymes. It also means it can't attack our tissues.

- It's "mirrored" toxins won't have any effect on us. (But compounds that are normally benign could become toxic if "mirrored".)