Under which of the following conditions are you most likely to fall sick?
When you visit your friend who is suffering from measles.
You are more likely to fall sick when you visit your friend who is suffering from measles. This is because measles is highly contagious and can easily spread through the air. This highly contagious virus is spread by coughing and sneezing via close personal contact or direct contact with body secretions. Thus, if your friend is suffering from measles, it is advised to stay away from him/ her to prevent yourself from getting infected.