Children infected with the coronavirus produce weaker antibodies and fewer types of them than adults do, suggesting they clear their infection much faster, according to a new study published Thursday. Other studies have suggested that an overly strong immune response may be to blame in people who get severely ill or die from Covid-19. A weaker immune response in children may paradoxically indicate that they vanquish the virus before it has had a chance to wreak havoc in the body, and may help explain why children are mostly spared severe symptoms of Covid, the disease caused by the coronavirus. It may also show why they are less likely to spread the virus to others. To read the full story.