Implications and Mechanisms of Antiviral Effects of Lactic Acid Bacteria: A Systematic Review.

Background: Lactic acid bacteria (LAB) are among the most important strains of probiotics. Some are normal flora of human mucous membranes in the gastrointestinal system, skin, urinary tract, and genitalia. There is evidence suggesting that LAB has an antiviral effect on viral infections.

Survival of gastric cancer patients in Iran: a systematic review and meta-analysis.

Aim: This study aimed to estimate the survival rates among Iranian gastric cancer patients and to evaluate if the survival has improved during the last three decades.

Background: Gastric cancer is one of the most common cancers in Iran with high mortality.

Methods: A systematic review and meta-analysis of all published studies addressing gastric cancer survival in Iran was performed.

COVID-19 Reinfection in a Patient with Hodgkin Lymphoma: a Case Report.

COVID-19 pneumonia has invaded the world and continues to expand. The current evidence of the immune system reaction to this viral pneumonia shows that the post-infectious immunity against the virus may be temporary, and the virus may reinfect the patients after healing from the previous one. Here is presented a 55-year-old female patient, as a known case of Hodgkin lymphoma, diagnosed with COVID-19 reinfection during 40 days.