Background: Intestinal worm infestation is still a health problem in Indonesia that is often neglected. This disease is chronic in nature and is strongly influenced by factors of environmental hygiene and sanitation. Slaughterhouses are places where animals in the form of cows, goat/ sheep and pigs are slaughtered to be distributed to meat sellers or to reataurants. This study aims to determine the profil description and incidence of intestinal worm infestations in workers in three slaughterhouses in Riau Province.Methods: This study was a cross-sectional descriptive study in August – October 2020 in three slaughterhouses in Riau Province ( Pekanbaru, Duri and Dumai city). Stool examination was carried out using the Kato Katz Method at the Parasitology Laboratory Medical Faculty, Universitas Riau. Result: Do A total 37 workers who were examined found 35 men, age range 21 – 30 yo as much as 38% with latest education 46% was high school, length of work 1 – 5 years as much as 57% and as much as 41% have normal nutriotional status. Six workers found positive for intestinal worm infections (16%), there were three hookworm infections and one each to Trichuris trichiura, Oxyuris vermicularis and Hymenolepis diminuta.Conclusion : There were still intestinal worm infections among workers in the three slaughterhouses. Intestinal worm infection usually occurs in children and rarely occurs in adults and if it occurs in adults this may be due to poor hygiene and sanitation of the slaughterhouse workers.

Abstract. Pediculosis capitis is an infectious parasitic disease which is still a healthproblem, especially for people who live together in groups. Pesantren is a placewhere a group of students study and live together. They carry out daily activitiestogether, from sleeping, eating, studying and playing. This student activity is one ofthe risk factor of contracting a parasite infestation. This activity aims to determinethe incidence of pediculosis capitis, conduct health education, namely counselingabout the eradication of the disease and providing treatment to students who areinfested with Pediculus humanus capitis. This activity was carried out at thePesantren/ Islamic boarding School in Kandis District, Siak Regency. The targetaudience was the sanawiah student were 70 students. There were 36(51,4%)students with pediculosis capitis. Students who had been diagnosed were givenpermethrin 1% and serit comb, after given treatment and education to prevent thedisease, it is hoped that the students will be ableto apply the knowledgegained toeradicate the disease.Keywords: boarding school, pediculosis capitis, Pediculus humanus capitis,studentsAbstrak. Pedikulosis kapitis adalah penyakit parasitik menular yang sampaisekarang merupakan masalah kesehatan terutama pada orang yang tinggal bersamasecara berkelompok. Pesantren merupakan tempat sekelompok santri belajar dantinggal bersama. Mereka melakukan kegiatan sehari-hari bersama, mulai dari tidur,makan, belajar, dan bermain. Kegiatan bersama santri ini merupakan salah saturisiko mudahnya tertular infestasi Pediculus humanus capitis. Kegiatan pengabdiankepada masyarakat ini bertujuan untuk mengetahui kejadian pedikulosis kapitis,melakukan pendidikan kesehatan, yaitu penyuluhan tentang pemberantasan penyakittersebut, dan memberikan pengobatan pada santri yang terinfestasi pedikulosiskapitis. Kegiatan ini dilaksanakan di Pondok Pesantren di Kecamatan Kandis,Kabupaten Siak. Khalayak sasaran adalah santri sanawiah yang berjumlah 70orang. Terdapat 36 (51,4%) santri terkena pedikulosis kapitis. Santri yang sudahdidiagnosis tersebut langsung diberikan permethrin 1% dan sisir serit. Setelahdiberikan pengobatan dan pendidikan pencegahan penyakit tersebut diharapkansantri dapat mempraktikkan pengetahuan yang didapat dalam rangka memberantasinfestasi Pediculus humanus capitis.Kata Kunci: santri, pedikulosis kapitis, Pediculus humanus capitis, pesantren