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  1. Fulltext Epidemiology of Haemophilus influenzae invasive disease in hospitalised Kelantanese children, 1985-1994
    Nik Khairulddin NY, Choo KE, Johari MR
    Singapore Med J, 1999 Feb;40(2):96-100.
    PMID: 10414167
    Data is lacking with regard to the epidemiology of invasive haemophilus influenzae (HI) disease in Malaysia. This study was carried out to document the epidemiology of invasive HI disease in hospitalised Kelantanese children.
    Matched MeSH terms: Haemophilus Infections/epidemiology*
  2. A review of Hib epidemiology in Asia
    Lolekha S, Cooksley G, Chan V, Isahak I, Ismael S, John J, et al.
    Southeast Asian J Trop Med Public Health, 2000 Dec;31(4):650-7.
    PMID: 11414406
    Meningitis due to an invasive Haemophilus influenzae type b (Hib) infection, has been previously perceived to be relatively uncommon in Asia. However, the incidence of disease and its impact may have been underestimated. In addition to a lack of microbiological facilities in some hospitals, difficulties in culturing the organism and the widespread use of antibiotics may have hidden the true incidence of the disease in some countries. Furthermore, the reported disease burden probably underestimates the incidence of Hib pneumonia. The epidemiology of invasive Hib disease for various Asian nations is reviewed in this paper. Hospital-based studies show that Hib is a major cause of bacterial meningitis and/or pneumonia in the Philippines, India, Thailand, Malaysia, Indonesia and Vietnam. Singapore and Hong Kong have a low incidence of infection compared with Western and other Asian nations. This low incidence is not due to a higher level of natural protective antibodies, but may be related to an interaction between environmental and genetic factors. Therefore the widespread belief that Hib infection is unimportant in Asia does not refer to Asia as a whole and possibly to Chinese patients only, and failure to recognize this has serious implications. The inclusion of Hib vaccine in the routine infant immunization schedule in many industrialized nations has significantly reduced the incidence of invasive disease. Recent studies have shown Hib vaccination is also effective in preventing invasive disease in children in developing countries. While population-based data may be required to confirm the need for public-funded infant Hib immunization in Asia, its introduction in countries with a high incidence of Hib meningitis and/or pneumonia has the potential to significantly improve pediatric health and survival.
    Matched MeSH terms: Haemophilus Infections/epidemiology*
  3. Fulltext High frequency of Haemophilus influenzae associated with respiratory tract infections among Malaysian Hajj pilgrims
    Nik Zuraina NMN, Sarimah A, Suharni M, Hasan H, Suraiya S
    J Infect Public Health, 2018 08 07;11(6):878-883.
    PMID: 30097415 DOI: 10.1016/j.jiph.2018.07.010
    BACKGROUND: Overcrowding during the annual Hajj pilgrimage has been known to increase the risk of infectious diseases transmission. Despite the high prevalence of respiratory illness among Malaysian Hajj pilgrims, knowledge about the etiologic pathogens is yet very limited. Thus, this study aimed to determine the spectrum of bacterial respiratory pathogens among the Hajj pilgrims returning to Malaysia in year 2016.

    METHODS: Expectorated sputum specimens were collected from the Hajj pilgrims with symptomatic respiratory tract infections (RTIs). Subsequently, the bacterial pathogens were identified using the standard bacteriological culture method and Vitek II system.

    RESULTS: This study indicated that 255 (87.33%) out of 292 cultured sputa were positive with at least one potential pathogenic bacteria. Out of 345 total bacterial isolates, 60% (n=207) were Haemophilus influenzae, which was associated with both single bacterium infection (132/173, 76.3%) and multiple bacterial infections (75/82, 91.5%). The other bacterial isolates included; Klebsiella pneumoniae (n=37, 10.7%), Moraxella catarrhalis (n=27, 7.8%), Haemophilus parainfluenzae (n=25, 7.2%), Streptococcus group G (n=18, 5.2%), Klebsiella spesies (n=16, 4.6%), Streptococcus pneumoniae (n=11, 3.2%) and few other organisms.

    CONCLUSION: High frequency of H. influenzae was isolated from Malaysian Hajj pilgrims, especially those with respiratory symptoms. Further study should evaluate the actual pathogenicity of the organism and the interactions between the respiratory microbiota towards developing effective prevention strategies of RTIs among the local pilgrims.

    Matched MeSH terms: Haemophilus Infections/epidemiology*
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