Coinfections with bacteria can make viral infections even deadlier. Researchers have identified a protein in immune cells that may play a role in fighting both types of pathogens.
Measles infection can be easily managed with prompt health care and symptom management. But without care, mild symptoms can turn into life threatening secondary infections or long-term effects.
No one then knew a virus caused the 1918 flu pandemic, much less that animals can be a reservoir for human illnesses. Now virus ecology research and surveillance are key for public health efforts.