Unprecedented speedResearchers in the United States set an audacious goal in January to develop a coronavirus vaccine within 12 to 18 months. Coronavirus vaccines are moving much faster, partly because governments are taking on the financial risk of developing a vaccine that may not work. Show allViral-vectored vaccinesSome vaccines use a virus that has been engineered to be harmless to ferry a gene from the coronavirus into cells. Weakened and inactivated virus vaccines, developed by... *Vaccine currently in distribution that has not been fully tested. Some vaccines being tested do not specifically target the coronavirus, but aim to increase the body’s first line of immune defenses.

Source: Washington Post August 13, 2020 12:04 UTC