Upper Respiratory Tract Infection

3 articles published between August 10, 2026 and September 23, 2026.

EXPLAINER

Losing your voice: what causes hoarseness and what actually helps

Hoarseness affects nearly a third of people at some point. Most cases are viral and settle on their own; voice therapy helps persistent ones, and a voice change lasting weeks needs a look at the vocal cords.

3 min read

EXPLAINER

Do you need antibiotics for a sinus infection? For most people, no

Most acute sinus infections clear without antibiotics — about 46% of people are better within a week regardless. Drugs speed cure in only 5 to 11 per 100, and cause side effects in more.

3 min read

EXPLAINER

The probiotics evidence splits by indication: null for gastroenteritis, positive for colds

Two randomised trials in more than 1,800 children found no benefit in acute gastroenteritis. A Cochrane review of 23 trials found fewer upper respiratory infections, on low-certainty evidence.

4 min read

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