Resistance of certain bacteria to other antibiotics was also reported. For several decades starting in the late 1960s, many new antibiotics, of different classes that target different bacterial ...

Deadly bacteria resistant to penicillin, or the more than 100 different antibiotics since developed, are already killing 700,000 people every year. Unchecked, the global toll could rise to 10 ...

But since bacteria reproduce so quickly, sometimes they evolve to develop resistance faster than the antibiotics can stop them. Vaccines are a bit different. We take them before getting ill to ...