Brief Answer: Rule out respiratory infection Detailed Answer: Dear XXXX, Thanks for your query. Being now a winter season, with symptoms of cold shivers and shortness of breath, a respiratory infection needs to be ruled ou by a provider, who will determine if so if it is a viral or bacterial agent more likely, and thus determine apporpiate treatment. Depending on the physical or pulmonary findings a chest x-ray and some basic blood work like a CBC may be needed. Hope this helps wish you the best, Dr Brenes-Salazar MD Mayo Clinic MN

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