Parents in the United States who want to vaccinate their young children against Covid-19 this fall may face a growing set of ...

COVID-19 activity is rising in much of the country. Data shows overall respiratory virus spread is very low in the U.S.

Pfizer’s experimental updates come as COVID-19 cases, deaths and hospitalizations are all rising again and the U.S. hovers around 800,000 pandemic deaths.

Pfizer’s clinical trials in children 5 to 11 did not measure the vaccine’s effectiveness against COVID-19. Effectiveness was “never the intended primary endpoint,” Anderson said.

Pfizer-BioNTech has applied for full approval of its Covid-19 vaccine with the FDA. The vaccine would be the first Covid-19 vaccine approved for use in the U.S.