填空题

The World Health Organization says more effort is needed to stop the trade in counterfeit medicines. The United Nations health agency says countries must work together to fight the growing (26) from drugs that are not what they seem.
W.H.O. officials discussed the problem during a recent high-level meeting in Rome. (27) at the conference included representatives of government agencies, (28) groups and the drag industry.
Counterfeit medicines (29) people into believing they are taking something that will make them well. Instead, it might make them sicker or even kill them.
The World Health Organization says counterfeit drugs are part of a wider problem of (30) medicines. But it says the difference is that they are purposely (31) . Some contain no active substances. Some contain dangerous substances. Counterfeit drugs can also add to the problem of drug (32)
The World Health Organization says counterfeit medicines are present in all countries. They are thought to represent ten percent of drug sales worldwide.
Criminals often (33) .high-demand drug such as antibiotics, malaria drugs and painkillers. Also, with recent fears about bird flu, there have been reports of counterfeiting of the antiviral drug Tamiflu. (34)
W.H.O. officials say identifying counterfeit medicines is getting more difficult. Criminals are improving their methods. Representatives at the meeting in Rome agreed to create an international expert group. (35)
Counterfeit medicines are often sold on the Internet. But the Internet can also be used to fight the problem. (36) . It says this system should be expanded to all areas.