Vitamin C and COVID-19

Corona disease has killed at least 5 million people globally since it started in Wuhan, China in December 2019 (World Health Organization, 2021). The disease is caused by SARS-COVID-19, and is transmitted from person to person by respiratory droplets (Baladia et al., 2020, Ejaz et al., 2020). Although the early symptoms of COVID-19  include fever, weariness, headache, sore throat, cough, dizziness, vomiting, diarrhea, and lung involvement (Shakoor et al., 2021), it can cause long-term risks, such as chronic lung disorders, Alzheimer's, Parkinson's, and multiple sclerosis (Wang et al., 2020)