Fill in the Blanks Harmful BacteriaOnline version bacteria food safety hygiene by Petra Priest 1 Harmful bacteria are a to food . They can cause . Be on guard when you prepare food . Touch foods only after you have your hands . Keep your work surfaced and equipment . If you have a sore or a cut , it before you prepare food . It is recommended to use a coloured and plaster as well as a . If you are not , do not prepare food for other people . Wear a clean and keep long hair up when you are in the kitchen . While preparing food , do not your fingers , your fingernails or taste food with your . , and are three common insects that carry bacteria into food . When you have a cold , you and which is a common source of contamination of food . meat should never be stored alongside meat , even if it is in the fridge . People who sell food in cafes should supply for the customers' self service . Frozen chicken should be in the fridge and not on the . Food should only be reheated .