1.Molecular analysis of 2009 pandemic Infl uenza A(H1N1) in Malaysia associated with mild and severe infections
Pauline BALRAJ ; Huraizah SIDEK ; Jeyanthi SUPPIAH ; Alan Soo Beng KHOO ; Zainah SAAT
The Malaysian Journal of Pathology 2011;33(1):7-12
The 2009 pandemic infl uenza A(H1N1) was fi rst detected in Malaysia in May 2009. It quickly
spread in the general population and contributed to a number of infl uenza-like illness. The objective
of the study is to characterize genetic changes in early Malaysian isolates of mild and severe illness
of the novel infl uenza, and to compare sequences of viruses circulating in Malaysia to those in other
countries between May to September 2009. Viral isolates of 56 mild cases and 10 severe (intensive
care unit or fatal) cases were sequenced for haemagglutinin (HA) and neuraminidase (NA). Genome
sequencing of the viral RNA was conducted on 5 isolates (3 were from fatal cases). Highly conserved
sequences with few sporadic variations were identifi ed in HA and NA. E374K and D222N were
identifi ed in 2 viral isolates from patients with severe illness. Phylogenetic analysis showed close
genetic relatedness to the vaccine strain A/California/07/09 and other isolates circulating worldwide
during the same period. Sporadic variations were identifi ed in the viral isolates, however a larger
sample size is required to make associations with disease severity.
2.Responding to the Potential of Ebola Virus Disease (EVD) Importation into Malaysia
Wan Noraini Wan Mohamed Noor ; Sukhvinder Singh Sandhu ; Husna Maizura Ahmad Mahir ; Devan Kurup ; Norhayati Rusli ; Zainah Saat ; Chee Kheong Chong ; Lokman Hakim Sulaiman ; Noor Hisham Abdullah
Malaysian Journal of Medical Sciences 2014;21(6):3-8
The current Ebola outbreak, which is the first to affect West African countries, has been declared to have met the conditions for a Public Health Emergency of International Concern (PHEIC) by the World Health Organization (WHO). Thus, the Ministry of Health (MOH) of Malaysia has taken steps to strengthen and enhanced the five core components of preparedness and response to mitigate the outbreak. The National Crisis Preparedness and Response Centre (CPRC) commands, controls and coordinates the preparedness and response plans for disasters, outbreaks, crises and emergencies (DOCE) related to health in a centralised way. Through standardised case definition and mandatory notification of Ebola by public and private practitioners, surveillance of Ebola is made possible. Government hospitals and laboratories have been identified to manage and diagnose Ebola virus infections, and medical staff members have been trained to handle an Ebola outbreak, with emphasis on strict infection prevention and control practices. Monitoring of the points of entry, focusing on travellers and students visiting or coming from West African countries is made possible by interagency collaborations. To alleviate the public’s anxiety, effective risk communications are being delivered through various channels. With experience in past outbreak control, the MOH’s preparedness and response plans are in place to abate an Ebola outbreak.
3. Echovirus serotypes circulating in Malaysia from 2002 to 2013
Jeyanthi SUPPIAH ; Jeyanthi SARASWATHY ; Jeyanthi AMRY ; Apandi YUSOF ; Zainah SAAT
Asian Pacific Journal of Tropical Medicine 2016;9(3):252-255
Objective: To identify the circulating serotypes of human echovirus in Malaysia from 2002 to 2013. Methods: A total of 31 retrospective samples from non-polio acute flacid paralysis, hand-food-and-mouth disease, viral meningitis and enterovirus cases were subjected to amplification of partial VP1 gene by RT-PCR. Results: Sequencing and phylogenetic analysis of the partial sequences identified presence of human echovirus and human coxsackie viruses. It was found that echovirus 11 was the commonly circulating serotype followed by echovirus 6, echovirus 7, echovirus 3, echovirus 9, echovirus 30 and echovirus 1 in decreasing order. Additionally two types of human coxsackie virus isolates were detected which were coxsackie A24 and B3. Conclusions: From the findings, there is a possibility that echovirus 11 is the predominant serotype among Malaysian patients with echovirus infection. However, a larger sample size will yield a more confident result to support this evidence.
4. Sharing experiences from a reference laboratory in the public health response for Ebola viral disease, MERS-CoV and H7N9 influenza virus investigations
Ravindran THAYAN ; Mohd Apandi YUSOF ; Jeyanthi SUPPIAH ; Tengku Rogayah TG ABD RASHID ; Zarina Mohd ZAWAWI ; Nor Aziyah MAT RAHIM ; Fauziah KASSIM ; Rozainanee Mohd ZAIN ; Zainah SAAT
Asian Pacific Journal of Tropical Medicine 2016;9(2):201-203
An efficient public health preparedness and response plan for infectious disease management is important in recent times when emerging and exotic diseases that hitherto were not common have surfaced in countries with potential to spread outside borders. Stewardship from a reference laboratory is important to take the lead for the laboratory network, to proactively set up disease surveillance, provide referral diagnostic services, on-going training and mentorship and to ensure coordination of an effective laboratory response. In Malaysia, the Institute for Medical Research has provided the stewardship for the Ministry of Health's laboratory network that comprises of hospital pathology, public health and university laboratories. In this paper we share our experiences in recent infectious disease outbreak investigations as a reference laboratory within the Ministry of Health infectious disease surveillance network.