I am asking this for my brother. He is 60 years old, diabetic, and has blood pressure. He recovered from COVID-19 a month back and has been pretty good. But two days before, he got some allergies and rashes and also had dysentery and fever. We went to the doctor, and they did a CBC test. The result showed RBC morphology- predominantly normocytic normochromic, WBC morphology- neutrophilic, leukocytosis noted, band forms noted, platelets adequate in number, parasites-no hemoparasites seen, TLC - 12,450, neutrophils - 11520 cells per cubic mm, lymphocytes - 504, platelets - 295,000. The doctor said it could be due to food poisoning, but I wanted to get another opinion. The lymphocyte count is low; is that a cause of worry? Should we do any other tests? Also, he took Medrol 4 mg for almost 12 days last month for COVID-19 (his COVID-19 was mild to moderate, and SpO2 did not go below 92%). Is this some infection? He does not have a fever since yesterday night. Please help.