Bloodstream infection (BSI) occurs when a bacterial infection of someone else enters the bloodstream. It is difficult to determine the exact causes of BSI but it is considered that certain Gram positive and Gram negative bacteria are responsible for BSI. Fever, chills, high breathing rate, and nausea are common symptoms of BSI. According to the Centers for Disease Control and Prevention (CDC), patients with infections in the urinary tract, kidney, lung, and abdominal area are prone to suffer from BSI. In addition, people who are suffering with HIV or receiving chemotherapy treatment are at a higher risk of developing BSI. It is one of the serious complications for patients who are admitted in critical care units. This infection not only lengthens the hospital stays, but also increases the chances of life-threatening comorbidities and sometimes leads to death. As per an article published in the Journal of Laboratory Physicians in 2014, it was estimated that 200,000 to 300,000 new cases of BSI occur every year worldwide.