No, diesel engines don't have ignition coil as they work on compression ignition and not on spark ignition as in diesel engines. Glow plugs used in diesel are like small electric heaters which use the mechanism of heating due to resistance during electrification.
Clarithromycin is another antibiotic treatment for walking pneumonia. It is more powerful than even erythromycin as it is also used to help treat HIV/AIDS patients. It works by interfering with the protein synthesis of bacteria, which prevents them from growing further. It is given in the form of tablets or a gel.
In fact, walking pneumonia can have such mild symptoms, some people who have it don't know it. Sure, they're congested and coughing, but it's not severe enough to see a doctor about, so they're never diagnosed. Walking pneumonia is very common, affecting about 2 million people in the U.S. every year.