A 45-year-old woman in Kolkata has been diagnosed with human coronavirus HKU1, a virus from the same family as COVID-19. Human coronavirus HKU1 is not as deadly as SARS or COVID-19, but it can still be dangerous for older adults, infants, and people with weak immune systems. The case in Kolkata is not a reason to panic, but it is a reminder that we should always be careful about respiratory infections. A 45-year-old woman in Kolkata has been diagnosed with human coronavirus HKU1, a virus from the same family as COVID-19. Human coronavirus HKU1 is not as deadly as SARS or COVID-19, but it can still be dangerous for older adults, infants, and people with weak immune systems. The case in Kolkata is not a reason to panic, but it is a reminder that we should always be careful about respiratory infections. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle