<p><a class='_ac _lb' lightbox='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/2688655.0_r8tr2xnxxd2g.jpg '><img class='_ac _di img-fluid' style='width:810px; height:inherit; background: inherit;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/2688655.0_r8tr2xnxxd2g.jpg' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/2688655.0_r8tr2xnxxd2g.jpg' /></a></p><br/><p>Why do they need to mention 'new onset of' here?</p><br/><p>what is the difference between this and 'cough'</p>