Virus antibodies fade fast but not necessarily protection

New research suggests that antibodies the immune system makes to fight the new coronavirus may only last a few months in people with mild illness. Tuesday’s report in the New England Journal of Medicine suggests that about half of antibodies are gone after roughly 10 weeks. However, scientists say this does not mean all protection also is gone or that it won’t be possible to develop an effective vaccine. The immune system remembers how to make fresh antibodies if needed and other par