final String filterString = generateFilterString(lod);
if( filterString.equals(VCFConstants.PASSES_FILTERS_v4) ) {
builder.passFilters();
} else {
builder.filters(filterString);
}
final VariantContext outputVC = builder.make();
if( !EXCLUDE_FILTERED || outputVC.isNotFiltered() ) {
vcfWriter.add( outputVC );