Mpempe mmeghe na sepra na-ezo aka na iwepu okpu site na vial nke nwere septim. A na-eme nke a na ntọala ụlọ nyocha mgbe ị na-abanye ọdịnaya nke vial maka nyocha ma ọ bụ jiri nwayọ mee ka usoro a na-eguzosi ike n'ihe atụ.
