Herd immunity occurs when enough people in a group are immune to a specific infection that it cannot spread easily from person to person. Vaccination programs have been successful in creating herd ...

What started out as a breakout in one country has turned into a pandemic that has taken the lives of well over 11,000 people across the globe. In its early stages, COVID-19 was often compared to the ...

To stop the spread of an infectious disease like measles, you don’t have to vaccinate everyone. But you do have to vaccinate many. Just how many? To let you discover for yourself, we simulated an ...

Herd immunity is the name for a point in time when it's hard for a disease to spread through a group of people. The idea of herd immunity works for some diseases, such as measles. But it's a harder ...

Remember herd immunity, the early aspirational goal of our COVID strategy? It has arrived, at least according to some recent findings of the CDC’s Morbidity and Mortality Weekly Reports (MMWR). The ...

If we measure the strength of public health by its ability to protect those who cannot yet protect themselves, the maternal–newborn dyad is where that test begins. The measles outbreak in rural North ...