Several compression techniques are employed in epidemiology, including: - Lossless Compression: Methods like ZIP and GZIP that do not lose any data during compression. - Lossy Compression: Techniques like JPEG and MP3 that reduce file size by sacrificing some data quality, useful for certain types of [imaging data](http://). - Hybrid Methods: Combining both lossy and lossless techniques to optimize both file size and data quality.