Cranberry fruit in COVID-19

INTERVENTION: Intervention 1: Intervention group: For 14 days, patients received the cranberry capsule (500 g) prepared in Tabriz School of Pharmacy, while receiving it from the researcher while visiting Imam Reza Hospital, and consumed one glass daily with a glass of water. Intervention 2: Control group: For 14 days, patients received a starch capsule (500 g) prepared in Tabriz School of Pharmacy, while visiting the Imam Reza Hospital from a researcher, consuming one daily with a glass of water. CONDITION: COVID‐19, virus identified. ; COVID‐19, virus identified U07.1 PRIMARY OUTCOME: Interleukin‐6 blood levels of patients before and after taking the drug. Timepoint: Before starting the drug and 14 days after taking the drug. Method of measurement: Blood sample analysis for IL‐6 by ELISA in the laboratory. SECONDARY OUTCOME: Serum TNF‐a levels in patients' plasma. Timepoint: At the beginning of the study (before the intervention) and 14 days after starting the drug. Method of measurement: Blood sample analysis for TNF‐a by ELISA in the laboratory. INCLUSION CRITERIA: Confirmation of Covid‐19 by PCR test Satisfaction to participate in the study