Most vaccines -- and boosters -- are injected directly into muscle tissue, usually in the upper arm, to kickstart the body's immune system in the fight against disease. But for respiratory diseases ...

Consumers warned to avoid ‘dangerous’ nasal tanning sprays and gummies - The sprays can cause nausea, vomiting, high blood ...

When scientists engineer a better way to fight the flu, they often begin with nature’s own defenses. That’s what a new study ...