Immune and infectious diseases Archive

The Epstein-Barr virus that causes mononucleosis (mono) usually infects people during their childhood or the teenage years. The virus stays with people for life.

Sinusitis occurs when blocked sinuses cannot drain and the backed-up mucus gets infected. The simplest and often most effective treatment is daily nasal irrigation. It can also help to drink a lot of water, inhale steam, and sleep with the head elevated.

Encephalitis, or brain inflammation, can cause symptoms ranging from mild, flu‑like illness to life‑threatening confusion and coma. Causes, recovery, and urgent treatments vary by virus.

Monthly vitamin B₁₂ shots for pernicious anemia can be a hassle. Explore whether high‑dose vitamin B₁₂ pills or other non‑injection treatments might be an option.

Online patient portals enable people to see their medical records, communicate with their doctors, and more. This improved access has advantages along some with potential pitfalls, which can be avoided.

Chronic inflammation occurs when the immune system is over-stimulated all the time. It’s not clear why chronic inflammation develops in the body, but it is linked to many chronic conditions, such as diabetes and rheumatoid arthritis.

Mild sinus or ear infections don't necessarily mean delaying vaccination. Learn when to wait on your flu shot and how fast protection builds.

Breastfeeding moms often worry about vaccines and their babies' safety. Explore how flu shots and nasal spray immunizations fit into postpartum protection.

Learn how certain asthma medication affect your choices for the flu shot.

In the US, widespread vaccination halted the ongoing spread of measles more than 20 years ago, but recent outbreaks have flared in over 20 US states, leading to hospitalizations and at least two deaths. Measles is highly preventable - here's what you need to know.