How dangerous is Streptococcus pyogenes?

Streptococcus pyogenes causes over 700 million infections globally every year and has a high mortality rate of 25 per cent in serious cases – once you have an infection the bacteria can cause a range of diseases ranging from sore throat and impetigo up to scarlet fever. pyogenes) is a gram-positive bacterium, known as a … Read more

What is a Class 3 electrical appliance?

A Class III appliance is designed to be supplied from a separated/safety extra-low voltage (SELV) power source. The voltage from a SELV supply is low enough that under normal conditions a person can safely come into contact with it without risk of electrical shock. Class 1 Equipment Basic insulation and relies on an earth for … Read more

What is orbital shaker?

A shaker is a piece of laboratory equipment used to mix, blend, or to agitate substances in tubes or flasks by shaking them, which is mainly used in the fields of chemistry and biology. An orbital shaker has a circular shaking motion and it is suitable for culturing microbes, washing blots, and general mixing. Using … Read more