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Subtyping Blastocystis in pigs and humans revealed unusual avian‐specific subtype ST6 in humans in Serbia
Author(s) -
Süli Tamás,
Kozoderović Gordana,
Potkonjak Aleksandar,
Vidanović Dejan,
Tešović Bojana,
Vračar Vuk,
Miladinović Tasić Nataša,
Stensvold Christen Rune,
Lalošević Vesna
Publication year - 2021
Publication title -
zoonoses and public health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.87
H-Index - 65
eISSN - 1863-2378
pISSN - 1863-1959
DOI - 10.1111/zph.12829
Subject(s) - blastocystis , subtyping , biology , phylogenetic tree , gastrointestinal tract , human gastrointestinal tract , parasite hosting , transmission (telecommunications) , feces , veterinary medicine , microbiology and biotechnology , virology , genetics , gene , medicine , biochemistry , electrical engineering , world wide web , engineering , programming language , computer science
Blastocystis is a common protist colonizing the gastrointestinal tract of humans and various animals. The first subtyping of Blastocystis isolates in pigs and humans in Serbia revealed unusual avian‐specific subtype ST6 in humans. In total, 48 pig faecal specimens collected on seven pig farms and 50 human faecal specimens positive to Blastocystis by microscopic examination were selected for the study. Eleven randomly selected PCR‐positive pig samples and 10 samples from human patients (with gastrointestinal complaints) were subjected to SSU rDNA sequencing. Three subtypes were identified (ST3, ST5 and ST6) by phylogenetic analysis. ST5 was found in all pig samples; while in human samples, we detected ST3 and ST6. The latter subtype is relatively uncommon in Europe and highly adapted to avian hosts; therefore, the possibility of sporadic zoonotic transmission to human patients should not be ignored.