Database was generated by filtering NCBI Nucleotide for Mycobacteriaceae[Organism] AND (23S ribosomal RNA[Title] OR rrl[Gene Name]) AND 1000:3200[SLEN] AND type_material[Filter] (via fetch_myco_sequences() in build.rs).
Added to this database are the rrl sequences found in ntm-db (via extract_ntm_db_sequences() in build.rs).
Returns Some(false) only when position 2058/2059 is wildtype (Some(true)) and a
resistance-conferring SNP alt is observed elsewhere; otherwise returns None.
This captures rare mutations where resistance is not due to 2058/2059.