My name is V. Subbarao. I had very high fever suddenly two days ago accompanied by chills and severe rigors.and had to cover myself with several blankets. Everything subsided by next morning.Chest X-ray showed Mild cardiomegaly and Aorta unfolded. and WBC count was more than normal range indicating infection. My physician prescribed antibiotic Levoflox for five days, which I am starting today. All other relevant investigations being normal I request comments for my future guidance. My age is 87 years. Regards.