fix incorrect error message
@@ -198,7 +198,6 @@ cum_result_flows_by_variant = [f'cum_{key}' for key in result_flows_by_variant.k
# Parameters that can vary by variant
variant_pars = [
- 'rel_imm_variant',
'rel_beta',
'rel_symp_prob',
'rel_severe_prob',
