BIOSAFETY KNOWLEDGE, WASTE DISPOSAL PRACTICES AND IDENTIFICATION OF PARASITES IN BIOMEDICAL WASTES FROM HEALTHCARE ESTABLISHMENTS IN LAGOS AND ABUJA, NIGERIA

  • Abiodun Abiodun DENLOYE Lagos State University, Ojo, Lagos, Nigeria.
  • Teslim Oladele OJUROMI Lagos State University, Ojo, Lagos, Nigeria.
  • Kingsley OCHEI Lagos State University, Ojo, Lagos, Nigeria.
  • Elizabeth Adebukola ADE-SERRANO Lagos State University, Ojo, Lagos, Nigeria.
Keywords: Biosafety knowledge, Health Care Establishments, Biomedical waste disposal, Parasites, Parasitological methods

Abstract

In Nigeria, the level of biosafety awareness is low among workers in Health Care
Establishments (HCEs) and neither have pathogenic organisms in wastes from HCEs been
identified. Studies were therefore carried out to examine the level of biosafety awareness
and the biomedical waste disposal practices in selected HCEs in Abuja and Lagos
respectively as well as identify parasites from HCE wastes from Lagos prior to final
disposal. A total of 200 questionnaires were administered to HCE workers in Abuja and
Lagos respectively for information on their knowledge of biosafety and how biomedical
wastes are disposed. Also, samples of urine (40) and stools (50) from 90 HCEs in Lagos
were examined for presence of parasites using standard parasitological methods
comprising of direct wet mount and formol ether concentration techniques. Both urine
and stool were examined with 5 % lugol iodine and kinyoun carbol fuschin stain. Result
showed that HCE workers had knowledge of the basics of biosafety but those in Lagos
understood more than the ones in Abuja. Trichomonas vaginalis was identified in one of
the urine samples. Female stool (22 %) had the highest prevalence of intestinal parasites
relative to males (4 %). Entamoeba histolytica (6 %), Ascaris lumbricoides (6 %) and
Cryptosporidium spp. (6 %) were prevalent in the stool samples. These results
underscore the need for more enlightenment and education for HCE workers in respect of
biosafety. It further showed that the HCEs in Lagos disposed biomedical wastes
improperly, which can lead to further transmission of pathogenic organisms.

Published
2019-02-17