RSV, a respiratory virus, usually causes mild, coldlike symptoms. But in young children, it can sometimes lead to severe disease.
While monoclonal antibodies and vaccines both equip the body with antibodies to fight the virus, monoclonal antibodies are usually more expensive and typically more difficult to administer than vaccines, and are usually given in a hospital instead of a pharmacy, experts say.
. That included more than 400 healthy pregnant women ages 18 to 49 who received either the vaccine or a placebo. By comparison, three infants in the vaccine group also developed this infection, one of whom had a severe case but was not hospitalized. "RSV is such a common virus that many people will have immunity to it, but that protection doesn't last very long," said Muller, who was also not involved with the new research.
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