1. Purchase a SIM card if your carrier requires one. In order to activate your used phone, you will need to insert a SIM card for your plan. 1  Unless the device has been unlocked, it can generally only be activated on the same carrier it was originally activated on.
Whooping cough causes severe coughing spells, which can sometimes end in a whooping sound when the child breathes in. Before a vaccine was available, pertussis killed about 9,000 people in the United States each year. Now, the pertussis vaccine has reduced the annual number of deaths to less than 20.
An occasional cough is normal. But a cough that persists may signal an underlying problem. A cough is considered acute if it lasts less than three weeks; it's chronic if it lasts longer than eight weeks (four weeks in children). Some causes of coughs include: Common causes â acute. 1  Common cold. 2  Influenza (flu). 3  Inhaling an irritant. 4  Pneumonia. 5  Whooping cough.