Urinary tract infection (UTI) is the most common human bacterial infection in the community as well as in hospital settings (Vijaya Swetha et al., 2014). Urinary tract infection during pregnancy may cause complications such as pyelonephritis, hypertensive disease of pregnancy, anaemia, chronic renal failure, premature delivery and foetal mortality (Moyo et al., 2010). Early diagnosis and treatment of UTI has shown marked improvement in pregnancy outcome as well as reduction of the incidence of acute pyelonephritis, highlighting the need to screen all women in pregnancy irrespective of symptoms.