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Expert opinion

Despite the availability of a highly effective vaccine and targeted global policy, measles has persisted for decades. A new report from the Centers for Disease Control and Prevention and World Health Organization, with contributions from LSHTM, outlines the current global status of measles vaccination and burden.
How do antibiotics work? Antibiotics are made from naturally occurring chemicals that stop bacteria growing, either by slowing down their normal functions or by killing them directly. We use antibiotics when we need to treat serious bacterial infections, like urinary tract infections, skin infections or meningitis.
What are the issues around pneumonia, particular in displaced populations? Lower-respiratory tract infections (LRTIs) are a leading cause of death in children under five worldwide, with increased rates in displaced populations. We believe that a substantial proportion of these infections are caused by Streptococcus pneumoniae (the pneumococcus); a common bacterium that can cause pneumonia and meningitis.
What are the symptoms of dengue and what health impacts does it have globally? While the majority of dengue infections cause mild flu-like symptoms or are even asymptomatic, some people experience headaches, severe joint pain and even internal bleeding that can lead to death. Globally dengue causes 50-100 million cases a year across over 120 countries. Many of these are concentrated in high profile outbreaks that are difficult to control.