Files stored in the UPD format are more commonly known as program update information files. These .upd files are text documents, and its content can be viewed by any text editing or word processing application. Users of Microsoft Windows-based systems can use the Microsoft Notepad application to open and edit these .upd text documents.
Croup (acute laryngotracheobronchitis) on X-ray with steeple sign. Croup, also called acute laryngotracheobronchitis is caused by viral infection of the upper airway usually parainfluenza virus or respiratory syncytial virus (RSV).
Receiving a diagnosis of wet age-related macular degeneration (AMD) may explain whatâs causing dark spots and vision changes, but it may prompt other questions, too. Your doctor probably told you that wet AMD can eventually cause vision loss â but what does this mean, how does it happen, and most importantly, what can you do about it?