You should know that flu is a much less severe and endangering for patient than pneumonia. Pneumonia is a bacterial or viral infection of the lungs. It can follow flu, but also can occur independently. Your w she is developing some other disorder too. There is a vaccine available that protects against 23 types of bacteria that cause pneumonia. Perhaps she should have it or in case that she already got infected there is no use of vaccine. The symptoms you have described are not indication of any specific disease, as they vary from person to person and professional consultation is needed to provide acute diagnosing.
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