Many bacteria develop immunity to certain antibiotics over time. As we continue to use said antibiotics to fight infection the risk of bacteria becoming immune grows. This is why there is a constant need to develop variants of antibiotics to stay ahead of resistance.
Today, drug-resistant infections are a serious threat to people's health. Hundreds of thousands of lives are lost every year because of infections that can no longer be treated with existing drugs. Discovering new antibiotics, able to kill drug-resistant bacteria, is essential to saving modern medicine.
A true-breeding<span> organism, sometimes also called a purebred, is an organism that always passes down certain phenotypic traits (i.e. physically expressed traits) to its offspring.</span>
