How can I reduce COVID-19 infection risk and protect others?
Combine recommended vaccination for your circumstances, cleaner indoor air, hygiene and reduced contact with others when ill. A well-fitting mask helps in higher-risk settings and crowded indoor spaces. No single measure provides complete protection against infection or severe illness.
Details
Include indoor air in prevention
Open windows when safe or improve ventilation and filtration, and favour outdoor meetings when practical. Handwashing and cough etiquette help, but surface cleaning alone cannot replace reducing shared-air exposure.
When symptoms appear
Limit contact and follow current local guidance on testing and returning to activities, with added precautions around older or immunocompromised people. If at higher risk, seek early advice about treatment because some options have a short treatment window.
When help is urgent
Severe breathlessness, persistent chest pain, confusion or blue lips needs emergency care. Do not self-start antibiotics or steroids, or delay care while waiting for a home-test result.
Related reading: How can I reduce my child’s infections without isolation or unnecessary medicines?.