Reports of a novel virus spreading to countries in East and Southeast Asia have put local authorities and the World Health Organization (WHO) on alert.

Typhus is a rare bacterial infection that people can acquire from insect bites. Discover its symptoms, risk factors, and the treatment options available.

Should all viruses be considered villains? In this feature, we meet bacteriophages. These viruses live in us and on us and easily outnumber bacteria.

A new study shows how our cells detect if an infection with Pseudomonas aeruginosa is a serious threat and whether to mount a defence.

Meningococcemia is a serious blood infection that causes a rash and other symptoms. Doctors can help prevent severe complications, including death, with prompt treatment. Learn more.

A new study in roundworms and elderly mice suggests that even the inactivated form of a probiotic bacterium could reduce inflammation and promote health.

Mounting evidence shows that many beauty products — particularly makeup sponges — become contaminated with potentially harmful bacteria.

As the effectiveness of antibiotics wanes, scientists are looking at medications that preceded them, such as those involving metals and metalloids.

Chronic Lyme disease occurs when a person who has already received treatment for Lyme disease continues to have symptoms in the long term. Learn more about this condition here.

New research reveals a mechanism by which several conspecific bacteria ‘unite’ to become more resistant in the fight against antibiotics.