Corona virus and traditional approach for developing immunity through unani herbal medicine

Till date four coronaviruses are found to exist i.e. human coronavirus 229E (HCoV-229E), HCoV-0C43, severe acute respiratory syndrome (SARS) associated coronavirus (SARS-CoV), fourth human coronavirus, HCoV-NL63 has been reported from a seven-month-old child with bronchiolitis and conjunctival inflammation. Coronaviruses, a genus of the coronaviridae family, are enveloped viruses with large plua- strand RNA genome. The genomic RNA is 27-32 kb in size, capped and polyadenylated. After detailed and extensive research coronaviruses have been found in rats, mice, chickens, swine cattle, horses, dog, cats, rabbits, humans and can cause a wide variety of diseases including gastroenteritis and respiratory tract diseases. The most recent found SARS-CoV can lead to life threating pneumonia and is the most pathogenic human coronavirus identified so far. This fatal and highly contagious virus is likely to decide in an animal reservoir and resulted in recent epidemic in humans through zoonotic transmission.