Tiny viruses have immense capacity to do harm, but they are difficult to trace and difficult to distinguish. The usual methods of identifying them are by identifying antibodies, and by injecting cells with flourescent dye and examining them under a high-powered microscope.
破壞力驚人的小小病毒，追蹤識別不易，一般而言，皆利用病毒抗體加上染劑注入細胞，使該病毒在高倍顯微鏡下呈現螢光反應，以斷定病毒種類。