infections

More than 1 million people succumb to drug-resistant infections every year, and the death toll could reach nearly 2 million per year by 2050.

All of these infections occurred in farmworkers who came into contact with infected cows or poultry, except one case in Missouri in which health officials could not track the origins of the infection.

The causes of neurodegenerative diseases are largely mysterious, but the current thinking is that they involve inflammation, a normal function of the immune system that is usually short-lived in response to infections or wounds.

A research paper titled "Targeted recruitment of immune effector cells for rapid eradication of influenza virus infections" has been published in the peer-reviewed Proceedings of the National Academy of Sciences.

Acute infections normally clear up spontaneously in patients with an intact immune system.