There is some advice about preventing infection from the DfE below:                                                                                                              

• There are general principles anyone can follow to help prevent the spread of respiratory viruses, including:
• washing your hands often - with soap and water, or use alcohol sanitiser if handwashing facilities are not available. This is particularly important after taking public transport
• covering your cough or sneeze with a tissue, then throwing the tissue in a bin. See Catch it, Bin it, Kill it
• people who feel unwell should stay at home and should not attend work or any education or childcare setting
• pupils, students, staff and visitors should wash their hands:
• before leaving home
• on arrival at school
• after using the toilet
• after breaks and sporting activities
• before food preparation
• before eating any food, including snacks
• before leaving school
• use an alcohol-based hand sanitiser that contains at least 60% alcohol if soap and water are not available
• avoid touching your eyes, nose, and mouth with unwashed hands
• avoid close contact with people who are unwell
• clean and disinfect frequently touched objects and surfaces
• if you are worried about your symptoms or those of a child or colleague, please call NHS 111. Do not go directly to your GP or other healthcare environment                        You can also contact the government/DfE helpline by email: DfE.coronavirushelpline@education.gov.uk