RESPIRATORY TRACT INFECTIONS

This study tests if bevacizumab, a drug that blocks blood vessel growth, can help adults with recurrent respiratory papillomatosis (RRP) go longer between surgeries. RRP causes wart-like growths in the airways that often return after removal. About 21 participants will receive th…

This study tests whether OM-85, an immune-boosting medication, can reduce the number of respiratory infections in children aged 6 months to 5 years who have wheezing. About 525 children will receive either OM-85 or a placebo for a short or long period. The goal is to see if OM-85…

This study tests three new pulse oximeters (devices that measure oxygen levels) in 936 children under 2 years old with pneumonia in Cape Town, South Africa. The goal is to see if these devices help healthcare workers correctly identify low oxygen levels and refer children for pro…

This study re-infects healthy adults who previously had a mild bird flu (H10N7) with the same virus. The goal is to understand how the body fights off repeat infections, which can help design better flu vaccines. Participants stay in the hospital for at least 9 days and provide s…

This study tracks 2,500 people and their dogs at four Canadian beaches to see how often they get sick from blue-green algae in the water. Researchers will measure stomach bugs, skin rashes, eye infections, and breathing problems linked to swimming or playing in algae-affected wat…

This study is observing over 2,000 people and their pets in the Canton of Bern, Switzerland, to understand how infections like COVID-19 spread and how social and environmental factors affect transmission. Participants provide nasal swabs, blood samples, and answer questionnaires …

This study compares new, less invasive ways to collect samples for detecting respiratory viruses like COVID-19. Instead of the standard deep nose swab, researchers are testing a nasal wash, saliva drool, and a special saliva cup. About 1,000 emergency room patients will provide s…