# Enfants testés PCR

select count(*) from (
select * from (select id_patient as id from tracking_infant where  eid_pcr_program=1
) a
union
select id_patient as id from testing_specimen
union  select id_patient as id from testing_result
union select id_patient as id from testing_mereenfant
  ) r
where id not in (select id from patient where linked_to_id_patient!=0)