Since the first outbreak of SARS-CoV2, Severe Acute Respiratory Syndrome Coronavirus-2 in Wuhan, China in the December 2019, the world continues to be in state of fear, uncertainty, tension and anxiety till date and this state might continue because of emerging mutants. The vaccination drive all over the world is continuing, still the new variants are cause of concern, with the aim to prevent the spread of the virus, focus should be on techniques and processes which helps in strengthening our defense mechanism, the immune system. It has becoming clear from several studies that the immune system is greatly impacted by the COVID-19 infection through several inflammatory reactions. The role of balanced diet full of nutrients cannot be overlooked in controlling infectious diseases. A balanced diet which should include plant foods, vitamins and micronutrients and this review wants to emphasize on the preventive role played by the plant foods, vitamins and minerals in COVID-19 infections, to reduce the mortality rate as well as the morbidity in patients who are infected.

Mucormycosis or black fungus although a rare fungal infection but has potential to be lethal and thus requires immediate treatment. The immune system is weakened due to SARS-CoV-2 and the body becomes susceptible and vulnerable to other infections as people are immune compromised. The immune system becomes weakened due to COVID-19 treatment especially in patients who are taking steroids making the body prone to attack by black fungus. As the black fungus cases are increasing in India, the country is facing shortage in medicaments in face of dual crisis. An epidemic of black fungus is sweeping India in the wake of a severe surge in COVID-19 cases. Experts are of the opinion that the cause is a combination of factors. These factors might include contaminated oxygen equipment and use of steroid drugs to treat certain COVID-19 patients.