Which action is advised to avoid viral respiratory illness at work?

The recommended action to avoid viral respiratory illness at work is staying home when symptomatic. This practice is essential in preventing the spread of illness among coworkers. When an individual exhibits symptoms of a viral respiratory illness, such as a cough, sneezing, or fever, they can easily transmit the virus to others in close proximity. By choosing to stay home, the symptomatic individual not only protects their own health by allowing time to recover but also safeguards the health of their colleagues by reducing the risk of contagion in the workplace. This collective responsibility is vital in maintaining a healthy work environment.

The other options do not effectively contribute to the prevention of viral respiratory illnesses. Skipping vaccinations can increase susceptibility to infections. Swallowing pool water does not relate to respiratory illness and can actually pose other health risks. Avoiding sunscreen is unrelated to respiratory health and does not have an impact on the spread of viral infections. Thus, staying home when symptomatic is the most prudent and responsible action to help control the spread of illness in a workplace setting.