Taking antibiotics when they are not necessary may lead to antibiotic resistance – i.e. an infection where antibiotics can't help – which is bad for your personal health and bad for global health.

How long it takes for antibiotics to work depends on factors like the type and severity of the infection, the type of antibiotic and health status.

Citing low chicken supplies, Chick-fil-A will back off its “no antibiotics ever” mantra and instead embrace a looser industry standard: “no antibiotics important to human medicine.” ...

If there’s a point where antibiotics are no longer effective, one expert says we’re “already there.” MRSA (Methicillin-resistant Staphylococcus aureus) is multi-drug-resistant strain ...

Antibiotics affect the microbes in your gut in a similar way that wildfires affect the plants and animals in a forest, Dr. Dong said. The landscape regrows, but with less diversity than before.