An effective nasal vaccine could stop the virus that causes COVID-19 right at its point of entry. But devising one that works has been a challenge for researchers.

A new species of bacteria that doesn’t normally live in the gut may trigger an immune response so strong that it spreads to the joints.

Study indicates ailing neurons may instigate an inflammatory response from the brain’s microglia immune cells.

On World Rabies Day – which is also the anniversary of French microbiologist Louis Pasteur’s death – a virologist reflects on the achievements of this visionary scientist.

Antiretroviral therapies for HIV, while extremely effective, need to be taken daily for life. Designing antibody treatments that need to be taken only once could improve compliance and reduce drug resistance.

A new study finds that misdirected immune responses can persist for months in those who are suffering from long COVID-19.

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.

While a strong immune response is essential to fight against viral infection, an immune system that continues to stay active long after the virus has been cleared can lead to lung damage.

A new generation of vaccines and boosters against SARS-CoV-2 may take a page from the anti-influenza playbook, with shots periodically tailored to target the most commonly circulating virus strains.

Previously underexplored immune cell populations have been genetically mapped across multiple tissues to provide new insights into how our immune systems work.