RESPIRATORY TRACT INFECTIONS

This study tests whether bevacizumab, a drug that blocks blood vessel growth, can reduce how often people with recurrent respiratory papillomatosis (RRP) need surgery to clear wart-like growths from their airways. About 21 adults who need at least two surgeries per year will rece…

This study tests whether a medicine called OM-85 can prevent respiratory infections in children aged 6 months to 5 years who have had wheezing episodes. 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 reduces the n…

This study is testing two new types of pulse oximeters—simple devices that measure oxygen levels—for babies and toddlers with pneumonia in Cape Town, South Africa. Researchers want to see if these devices help healthcare workers correctly identify children with low oxygen and ref…

This study is watching how infections like COVID-19 spread among people and between people and their pets in the Canton of Bern. Over 2,000 participants are providing samples and answering questions to help researchers understand social and environmental factors that affect disea…

This study tracks 2,500 people and their dogs at four Canadian beaches to see how often they get sick from blue-green algae. Researchers will measure stomach, skin, eye, and breathing problems linked to swimming or playing in algae-affected water. The goal is to provide data to h…

This study aims to understand how the immune system responds to a second infection with a mild bird flu virus (H10N7). Healthy adults who were infected with H10N7 in a previous study will be infected again and monitored closely in the hospital for 9 days. The goal is to learn mor…

This study compares new, less invasive ways to collect samples for respiratory virus testing—like a nasal wash or saliva—against the standard deep nose swab. Researchers want to see if these gentler methods work just as well and cause less pain. About 1,000 adults in the emergenc…