Key points from article :
Standard tests for bacterial infections involve growing bacterial cultures from patient samples and takes three to five days to get results.
Harvard Medical School has developed a small, portable device that can detect five of the most common infections in hospitals.
Device can analyse a sample of mucus or other fluid in a matter of hours using a technique that reads the genetic sequences of bacteria.
1 in 15 patients in developed countries will catch an infection during their hospital stay.
The study was published in the Science Advances journal.
