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Cases in Texas and other states are on the rise, but most of the infected were not vaccinated. Here’s what to know about the very contagious disease and how immunity works. Today, the U.S. gives ...

An infectious disease specialist took the time to explain what herd immunity is, how it works and when it might affect the spread of COVID-19. Dr. Frank Esper works for the Cleveland Clinic Children's ...

Scientists are getting a better handle on the complexities of how immunity works. Attentive readers might have noticed my absence over the last couple of weeks. I’ve been trying to recover from a bout ...

Jasmonate activity is included systemically by pathogens. Here plants are infected by bacteria carrying different avirulence genes (avrRpm1 at bottom right, avrRps4 at bottom left, avrRpt2 at top ...

Plants mobilize their immune defenses far earlier than scientists have believed for decades—and through a previously overlooked early signaling mechanism—according to a new study published in Nature ...

Herd immunity protects those with vulnerable immune systems. Here's how. Trump orders release of Arkansas congressman's son serving drug sentence Philippines detects nuclear radiation off coast At 80, ...

Measles cases have soared nationwide in the first two months of 2026. According to the Centers for Disease Control and Prevention’s most recent data, 982 cases of the highly contagious disease have ...