%0 Journal Article %K conjunctival swabs %K dried blood spots %K Polymerase Chain Reaction (PCR) %K Serology %K Surveys %K Trachoma %B International Health %D 2026 %G ENG %I Oxford University Press (OUP) %P 1 - 5 %R 10.1093/inthealth/ihag101 %T Lessons from a multi-country study into persistent and recrudescent trachoma %U https://academic.oup.com/inthealth/advance-article-pdf/doi/10.1093/inthealth/ihag101/72556868/ihag101.pdf %8 10/2026 %9 Article