1.Post-era mass drug administration: an update on intestinal parasitic infections in urban poor communities in Peninsular Malaysia
Sahimin, N. ; Abd Khalil, N.S. ; Lewis, J.W. ; Mohd Zain, S.N.
Tropical Biomedicine 2020;37(No.2):363-371
The health impact of a Malaysian national helminth control program which provided school-based anthelmintic chemotherapy from 1974 to 1983 was re-visited after three decades post MDA and associated risk factors amongst urban poor communities identified. Stool samples collected were screened using the formalin ethyl-acetate concentration technique recovered at least one species of helminth and/or protozoan. Despite a steady decline observed between 1974-1983 however, post MDA infections continue to persist in pockets of communities moderately (18.9%; n=39/206) with higher infection recorded amongst PPR flat residents (22.5%, n=16/71). Among risk factors identified, waste management method was the primary factor for Ascaris lumbricoides infections (n=33; 16.0%), whereas age, education, employment and source of drinking water were significant risk factors for cryptosporidiosis. Despite the government’s efforts to improve health through the provision of basic amenities to the general public, higher prevalence values amongst PPR flat dwellers suggests the need to implement targeted chemotherapeutic treatment of, once a year deworming as recommended by World Health Organization when the baseline prevalence of soil-transmitted helminth infections in the community is over 20%, in addition to preventive measures though improvements in health awareness programs and improved waste management methods.
2.Public health status of Myanmar refugees in South East Asia: A Malaysian case study
Mohd Hanapi, I.R. ; Sahimin, N. ; Lewis, J.W. ; Lau, Y.L. ; Othman, J. ; Tedong, P.A. ; Mohd Zain, S.N.
Tropical Biomedicine 2021;38(No.4):594-604
The United Nations High Commissioner for Refugees (UNHCR) reports over 80 million people
are displaced worldwide with approximately 26.3 million categorized as refugees and over
a million residing temporarily in South East Asia. Despite the lack of national legislative
framework in place for refugees and asylum seekers (RAS), Malaysia hosts approximately
178,140 as registered with UNHCR and the majority originate from Myanmar. In this review,
we examine refugees from South East Asia, particularly from Myanmar that have contributed
to the largest influx of refugees to this region with a focus on their health status. The
present study traces barriers to the health care of refugees in the country of asylum and also
the challenges faced by these communities in accessing health services.
3.Current status of infectious diseases among migrants and non-citizens in Malaysia
Mohd Putera, N.W.S. ; Azman, A.S. ; Mohd Zain, S.N. ; Yahaya, H. ; Lewis, J.W. ; Sahimin, N.
Tropical Biomedicine 2023;40(No.2):138-151
The mass movement of migrants to Malaysia for employment is one of the factors contributing to
the emergence and re-emergence of infectious diseases in this country. Despite mandatory health
screening for migrants seeking employment, prevalence records of infectious diseases amongst migrant
populations in Malaysia are still within negligible proportions. Therefore, the present review highlights
the incidence, mortality and overall status of infectious diseases amongst migrants’ populations in
Malaysia, which maybe be useful for impeding exacerbation of inequalities among them and improving
our national health system thru robust and effective emergency responses in controlling the prevalent
diseases found among these populations and maybe, Malaysian citizens too. Peer-reviewed articles from
January 2016 to December 2020 were searched through online platform including SCOPUS, PubMed,
Science Direct, and Google Scholar. Non-peer-reviewed reports and publications from ministry and
government websites including data from related agencies were also scoured from in order to ensure
that there are no cases being overlooked, as most published articles did not have migrants as the
research subjects. A total of 29 studies had been selected in the final analysis. Migrants in Malaysia
were at higher risk for tuberculosis, malaria, lymphatic filariasis, cholera, leprosy and leptospirosis.
Lymphatic filariasis was still endemic among this population while thousand cases of TB and cholera
had been reported among them due to cramp living conditions and poor sanitation in their settlements
respectively. While malaria had gradually decreased and become sporadic, the influx of migrant workers
had led to the rising of imported malaria cases. Low cases of leprosy had been recorded in Malaysia but
a significant proportion of it was contributed by migrant workers. As for leptospirosis, studies found
that there are prominent cases among migrant workers, which particularly highest within workers with
lower educational attainment. Infectious diseases are still prevalent among migrants in Malaysia due
to various interplay factors including their working sectors, country of origin, immunization status,
type of settlement, impoverished living conditions, and language and cultural barriers that impeding
access to health facilities.