2 sentences with “deficient”

But once AIDS progresses, fatal infections appear: pneumonia, a fairly common but disastrous disease that attacks the body disastrously when immune activity is deficient;

Researchers at the University of Birmingham, England, have shown that Parkinsonians are deficient in the liver enzymes that normally detoxify these chemicals. The resulting accumulation of cysteine and thiol, two neurotoxic compounds, can lead to various brain conditions. Other research suggests that a cellular abnormality may be the cause of the patient's inability to override the effect of the neurotoxicants.