The risk is very high, my wife is a nurse here in the UK and is infected. Fortunately she has light symptoms and a light cough. When I am with her we both wear a face mask, but there is no need for a shield because I’m not intubating her her or at risk of heavy splatter from close range explosive coughing. Again, even doctors in hospitals only wear face shields under specific circumstances, which are situations the general public are not likely to find themselves in. That’s why you don’t even see doctors and nurses wearing face shields in public or taking them home. Outside those specific circumstances they don’t need them, and we don’t need them.