Which of the following drugs can be taken to cure some communicable diseases?AntibioticsPainkillersAntisepticsDecongestants2Which of the following statements about antibiotics is not true? They have greatly reduced deaths from communicable diseasesThey can kill bacterial pathogensResistant strains of bacteria are emergingThey can kill viral pathogens3The first stage of testing a new drug involves computer modelling followed by testing on cells, tissues and animals. What is this stage known as? Clinical trialPlacebo effectDouble blind trialPre-clinical testing4Potential new drugs are tested extensively before they can be licensed. Which of the following best describes the four criteria that new drugs must meet?Effective, cheap, stable, successfully taken into and removed from the bodyEffective, safe, cheap, successfully taken into and removed from the bodyEffective, safe, stable, successfully taken into and removed from the bodyEffective, toxic, stable, successfully taken into and removed from the body5In clinical trials, the placebo looks identical to the drug being tested, but contains:A lower concentration of the drugNone of the drugA higher concentration of the drugA different drug6In which type of clinical trial do neither the patients nor the doctors know who is receiving the drug and who is receiving the placebo?Double blind trialControl trialBlind trialOpen trial