Frequently Asked Questions

• Is Bacticount FDA approved? No. Bacticount is not approved by the FDA or any other agency to diagnose or treat any disease.

• Which phone models are compatible with Bacticount? Bacticount only works for Samsung Galaxy S9 smartphones at this time due to the precise nature of the camera alignment and calibration for the particularities of the setup described in EBioMedicine.

• How do I add a feature to the app? The Android Studio source code for the app is available for download on Github.

• How can I add a pathogen to the assay? Please refer to the instructions on the “Add a pathogen” page for details.

• Do I need a new standard curve for every test? No. The results of a standard curve are saved as a “.pasc” file, and can be selected at any time for analyzing a new sample. A new standard curve is required for each pathogen and specimen type tested. We also recommend running new standard curves when changes to the device or reagents are implemented.

• Can I export LAMP traces to a computer? Yes. Plug your smartphone into your computer, open the “pictures” folder, and then the folder with the run’s name. Copy the data file to your computer (standard curves are “.pasc” files, and sample data are “.parr” files). Finally, rename the file to end in “.csv” and open in any spreadsheet software using comma-delimiter. The first 96 columns are fluorescence intensities for wells A1 to H12, and the 97th column is the elapsed time (in seconds).