People may also think that some of the symptoms of lung cancer, such as a persistent cough or breathlessness, may also be Covid-19.
Anyone with worrying symptoms, including a cough lasting more than three weeks, persistent breathlessness, weight loss, coughing up blood or chest pain, is being urged to seek help, with health leaders saying that they have a better chance of survival if they are seen early.
Late diagnosis of lung cancer has significantly worse chances of survival compared to cases caught at the earliest stages.
The campaign to encourage people to come forward by the NHS in England and Public Health England is being backed by ex-England cricket captain Sir Andrew Strauss, whose wife Ruth died from a rare form of lung cancer aged 46 in 2018.