Abstract
A high incidence of lungworm infection occurs in young village pigs, 5 and 11 months old. The mean count was 215 and 315 adult lungwqrms for eleven 5 month and ten 11 month village pigs respectively. All infections were mixed infections comprising M. pudendodectis (69 %), M. apri (18 %) and M. salmi (13 %). No seasonal variation was observed in the rate of infection. A partial immunity to Iungworms is evident in the 11 month old pigs.