Antibiotics and other antimicrobial agents are invaluable life savers, particularly in resource-limited countries where infectious diseases are abundant. Both uncomplicated and severe infections are potentially curable as long as the aetiological agents are susceptible to the antimicrobial drugs. The rapid rate with which antimicrobial agents are becoming ineffective due to resistance acquired as a result of unchecked overuse and misuse threatens to undo the benefit of controlling infections. The evidence for resistant microorganisms, many times to more than a single antimicrobial agent, has been observed globally. In Tanzania, there is evidence in the form of few scattered studies conducted in different parts of the country in a multitude of settings including health care facilities, the community, domesticated animals and wild animals