In rats and human DDT is converted to

In rats and humans DDT is converted to DDA.
DDD is converted to 2,2-bis(p-chlorophenyl)acetic acid (DDA) via hydroxylation to an acyl chloride intermediate followed by hydrolysis. When applied to soil DDT is digested by bacteria and slowly converted into DDE.
Human health effects from DDT at low environmental doses are unknown. Exposure to high doses, human symptoms can include vomiting, tremors or shakiness, and seizures.
The agility of surviving rats seemed to be permanently reduced. Their speed, coordination, and ability to climb were noticeably diminished from previously observed levels.