<div class="by" style="position: relative; outline: none; margin-bottom: 24px; font-size: 13px; color: rgb(17, 17, 17); font-family: Helvetica, Arial, sans-serif; line-height: 22px;"><h2 style="margin-bottom: 12px; font-size: 26px; color: rgb(84, 88, 90); line-height: 31px;">Definition</h2><a href="http://www.mayoclinic.org/about-this-site/welcome" style="text-decoration: none; color: rgb(0, 61, 165);">By Mayo Clinic Staff</a></div><div class="auto" style="position: relative; outline: none; width: 222px; float: right; margin-left: 24px; color: rgb(17, 17, 17); font-family: Helvetica, Arial, sans-serif; font-size: 16px; line-height: 22px;"></div><p style="margin-bottom: 12px; font-size: 16px; color: rgb(17, 17, 17); font-family: Helvetica, Arial, sans-serif; line-height: 22px;">Whooping cough (pertussis) is a highly contagious respiratory tract infection. In many people, it's marked by a severe hacking cough followed by a high-pitched intake of breath that sounds like "whoop."<br><p style="margin-bottom: 12px; font-size: 16px; color: rgb(17, 17, 17); font-family: Helvetica, Arial, sans-serif; line-height: 22px;">Before the vaccine was developed, whooping cough was considered a childhood disease. Now whooping cough primarily affects children too young to have completed the full course of vaccinations and teenagers and adults whose immunity has faded.<br><p style="margin-bottom: 12px; font-size: 16px; color: rgb(17, 17, 17); font-family: Helvetica, Arial, sans-serif; line-height: 22px;">Deaths associated with whooping cough are rare but most commonly occur in infants. That's why it's so important for pregnant women — and other people who will have close contact with an infant — to be vaccinated against whooping cough.<br><p style="margin-bottom: 12px; font-size: 16px; color: rgb(17, 17, 17); font-family: Helvetica, Arial, sans-serif; line-height: 22px;">I do not know your age, just pass some information, you can go internet for more information. <br>
作者：叶医师信箱 时间：2013年11月05日 04:46 查看全文