Presence of Balamuthia mandrillaris in hot springs from Mazandaran province, northern Iran. Latifi, A., Niyyati, M., Lorenzo-Morales, J., Haghighi, A., Tabaei, S., & Lasjerdi, Z. Epidemiology and Infection, 144(11):2456–2461, 2016. ![Presence of Balamuthia mandrillaris in hot springs from Mazandaran province, northern Iran [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Balamuthia mandrillaris is an opportunistic free-living amoeba that has been reported to cause cutaneous lesions and Balamuthia amoebic encephalitis. The biology and environmental distribution of B. mandrillaris is still poorly understood and isolation of this pathogen from the environment is a rare event. Previous studies have reported that the presence of B. mandrillaris in the environment in Iran may be common. However, no clinical cases have been reported so far in this country. In the present study, a survey was conducted in order to evaluate the presence of B. mandrillaris in hot-spring samples of northern Iran. A total of 66 water samples were analysed using morphological and molecular tools. Positive samples by microscopy were confirmed by performing PCR amplification of the 16S rRNA gene of B. mandrillaris. Sequencing of the positive amplicons was also performed to confirm morphological data. Two of the 66 collected water samples were positive for B. mandrillaris after morphological and molecular identification. Interestingly, both positive hot springs had low pH values and temperatures ranging from 32 °C to 42 °C. Many locals and tourists use both hot springs due to their medicinal properties and thus contact with water bodies containing the organism increases the likelihood of infection. To the best of our knowledge, this is the first report on the isolation of B. mandrillaris from hot-spring sources related to human activity. Therefore, B. mandrillaris should be considered as a possible causative agent if cases of encephalitis are suspected following immersion in hot springs in addition to Acanthamoeba and Naegleria. © Cambridge University Press 2016.
@article{latifi_presence_2016,
title = {Presence of {Balamuthia} mandrillaris in hot springs from {Mazandaran} province, northern {Iran}},
volume = {144},
issn = {09502688},
url = {https://www2.scopus.com/inward/record.uri?eid=2-s2.0-84964408734&doi=10.1017%2fS095026881600073X&partnerID=40&md5=5f82271f8071140202b4fc9fd455fd45},
doi = {10.1017/S095026881600073X},
abstract = {Balamuthia mandrillaris is an opportunistic free-living amoeba that has been reported to cause cutaneous lesions and Balamuthia amoebic encephalitis. The biology and environmental distribution of B. mandrillaris is still poorly understood and isolation of this pathogen from the environment is a rare event. Previous studies have reported that the presence of B. mandrillaris in the environment in Iran may be common. However, no clinical cases have been reported so far in this country. In the present study, a survey was conducted in order to evaluate the presence of B. mandrillaris in hot-spring samples of northern Iran. A total of 66 water samples were analysed using morphological and molecular tools. Positive samples by microscopy were confirmed by performing PCR amplification of the 16S rRNA gene of B. mandrillaris. Sequencing of the positive amplicons was also performed to confirm morphological data. Two of the 66 collected water samples were positive for B. mandrillaris after morphological and molecular identification. Interestingly, both positive hot springs had low pH values and temperatures ranging from 32 °C to 42 °C. Many locals and tourists use both hot springs due to their medicinal properties and thus contact with water bodies containing the organism increases the likelihood of infection. To the best of our knowledge, this is the first report on the isolation of B. mandrillaris from hot-spring sources related to human activity. Therefore, B. mandrillaris should be considered as a possible causative agent if cases of encephalitis are suspected following immersion in hot springs in addition to Acanthamoeba and Naegleria. © Cambridge University Press 2016.},
language = {English},
number = {11},
journal = {Epidemiology and Infection},
author = {Latifi, A.R. and Niyyati, M. and Lorenzo-Morales, J. and Haghighi, A. and Tabaei, S.J.S. and Lasjerdi, Z.},
year = {2016},
keywords = {16S, Article, Bacterial, Balamuthia mandrillaris, DNA, DNA sequence, Hot Springs, Iran, Polymerase Chain Reaction, RNA, RNA 16S, Ribosomal, Sequence Analysis, amplicon, bacterial RNA, controlled study, gene amplification, genetics, isolation and purification, microbiology, microscopy, nonhuman, nucleotide sequence, pH, parasite identification, polymerase chain reaction, temperature, thermal spring, water analysis, water sampling},
pages = {2456--2461}
}
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Previous studies have reported that the presence of B. mandrillaris in the environment in Iran may be common. However, no clinical cases have been reported so far in this country. In the present study, a survey was conducted in order to evaluate the presence of B. mandrillaris in hot-spring samples of northern Iran. A total of 66 water samples were analysed using morphological and molecular tools. Positive samples by microscopy were confirmed by performing PCR amplification of the 16S rRNA gene of B. mandrillaris. Sequencing of the positive amplicons was also performed to confirm morphological data. Two of the 66 collected water samples were positive for B. mandrillaris after morphological and molecular identification. Interestingly, both positive hot springs had low pH values and temperatures ranging from 32 °C to 42 °C. 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Many locals and tourists use both hot springs due to their medicinal properties and thus contact with water bodies containing the organism increases the likelihood of infection. To the best of our knowledge, this is the first report on the isolation of B. mandrillaris from hot-spring sources related to human activity. 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