The main thing to know: MMR vaccines are highly effective and provide long-lasting protection. Outbreaks occur mainly among unvaccinated individuals. But here's more about boosters, young children, infection-induced immunity and transmission.
Each cell in your body relies on precise communication with other cells to function properly. At the center of this process are the molecular switches that turn communication signals in the body on and off.
Reader Comments: Trump: Ambush in White House; War on Workers; Gut Medicaid; Make Apartheid Great Again; Spread Measles and Bird Flu; Techno-Fascism; Anti-semitism in Oval Office; No More Medicare Telehealth After Mar 31; Stand Up For Science Mar 7
Astronomers believe that a mysterious, invisible substance fills up the universe. Known as dark matter, they think it is a new kind of particle. But efforts over decades to find this particle have come up short.
Darwin's theory of natural selection provides an explanation for why organisms develop traits that help them survive and reproduce. Because of this, death is often seen as a failure rather than a process shaped by evolution.
Spread the word