undetectable

My viral load has been undetectable for years, meaning I cannot spread the virus to others.

When the bite of an Anopheles mosquito introduces Plasmodium into the human bloodstream, the parasites travel to the liver, where they lurk undetectably and mature for a period ranging from weeks to a year.

It added that clean air turbulence is virtually undetectable with current technology.

Homerton Fertility Centre had its licence suspended in March after some frozen embryos did not survive being thawed or were "undetectable".

“What is questioned here is not the science or research integrity, it is our failure to see an accidental image duplication that is undetectable without computational tools,” he writes in one comment.