Mapping single-cell responses to population-level dynamics during antibiotic treatment.

Summary: When doctors use certain antibiotics (like penicillin) to treat an infection, the bacteria don't all die instantly. Surprisingly, the whole group of bacteria actually gets a little bigger at first! Why does this happen? Because individual bacteria stretch out and get really long before they finally pop and die. Scientists have now figured out exactly how this stretching leads to popping. By watching single bacteria, they created a math model that perfectly predicts how the entire group will behave and eventually die off. This helps us understand exactly how antibiotics clear out infections from the bottom up!