The article discussed about how viral infections is affecting the humankind adversly . they are talking about the Nutrition immunology who are working actively , contributing to the prevention of COVID-19 .it basically deals with nutrition , immunity and infections. scientists have gained insight into cellular and microbial interactions of nutrition and microorganisms with the immune system and this information is helping in developing practical applications which helping in improving immune system. in this researh article they are briefly talking about how micronutrients also show immune response against infections.