The pharmaceutical industry has to be monitored because of the damage that can befall the patients.
Women taking testosterone should be carefully monitored, because safe levels of the hormone for women have not been determined.
He also said the healthcare worker is not one of 48 people who have been being monitored because of contact with Duncan.
Israel's justice minister, Yosef Lapid, said Mr. Vanunu would be closely monitored because the government believed he could divulge more nuclear information.
Fifa's head of security, Ralph Mutschke, has said that the final round of World Cup matches will be closely monitored because they were more susceptible to match fixing.
He also warned that if the drug was approved, its use would have to be carefully monitored, because it could raise the risk of bleeding.
Its use needs to be carefully monitored because it can also lead to side effects, like greater susceptibility to cancer, but that's what doctors are there for.
In Calderdale, West Yorkshire, which bore the brunt of the Boxing Day storm, officials said more than 100 bridges were being monitored because of concerns they could collapse with further heavy downpours.
Experts say: "Unfortunately we don't know who the security services consider interesting, and Philippa may be monitored because someone she once emailed or phoned knows someone who knows someone suspected of wrongdoing.
Turkey has said the suicide bomber who killed 10 German tourists in an explosion in Istanbul on Tuesday entered the country as a refugee and had not been monitored because he was not on any watch lists.
New York's water has to be closely monitored because it is naturally more corrosive than in other cities, making it more likely to pick up lead from the city's plumbing system.
