1.Cutaneous leishmaniasis case caused by the Leishmania donovani complex in northern Cyprus
Ruh E. ; Ozkayalar H. ; Nalcaci M. ; Toz S. ; Mocan G. ; Taylan-Ozkan A.
Tropical Biomedicine 2026;43(No. 1):60-64
The island of Cyprus is located in the Eastern Mediterranean, where leishmaniasis is endemic. Although
human visceral and cutaneous leishmaniasis (VL and CL) cases have already been documented on the
island, there are limited data on the Leishmania species in northern Cyprus. In this report, we present
a CL case diagnosed by both microscopic examination and quantitative real-time PCR (qPCR). The
patient, a 79-year-old man residing in northern Cyprus, developed an ulcerative lesion on his left leg.
The lesion was surgically excised for histopathological examination, and tissue sections were stained
with hematoxylin and eosin (H&E). Microscopic examination of H&E-stained tissue sections revealed
Leishmania amastigotes. To confirm the diagnosis and identify Leishmania species at the molecular
level, DNA was extracted from the paraffin-embedded tissue sections. Following deparaffinization, qPCR
targeting the Leishmania-specific Internal Transcribed Spacer 1 region (located between SSU and 5.8S
rRNA genes) was performed. In the qPCR assay, the infecting agent was identified as a member of the
L. donovani complex, presumptively L. infantum, based on the melting curve analysis. Our findings
provide molecular evidence for the presence of leishmaniasis in northern Cyprus and contribute to
addressing the lack of molecular data in the region. Our study also suggests that, due to the zoonotic
nature of the identified pathogen, continuous vector and reservoir control programs should be
implemented in the region to prevent the spread of the disease.
2.Seroprevalence of rickettsial infection in northern Cyprus: A study among hunters
Ruh, E. ; Aras, S. ; Gazi, U. ; Celebi, B. ; Tosun, O. ; Sanlidag, T. ; Imir, T. ; Taylan-Ozkan, A.
Tropical Biomedicine 2022;39(No.2):221-225
This study was conducted to investigate rickettsial seropositivity among hunters, a high-risk population for
tick-borne diseases in northern Cyprus. Serum samples were collected from 300 hunters from different
locations during the 2017-2018 hunting season (November 2017 - February 2018). The samples were
analyzed by indirect immunofluorescence assay (IFA) using slides coated with Rickettsia slovaca, a
species belonging to the spotted fever group (SFG). During the sample collection, a questionnaire was
also applied to evaluate possible risk factors for rickettsial seropositivity. Of the 300 serum samples,
six (2.0%) were found to be IgG-positive with a titer of 1:64. While all seropositive individuals were
male, the statistical analysis revealed no significant association of gender with rickettsial seropositivity
(p=1.000). Other factors including age (p=0.414), residential places of the participants (p=0.347),
hunting years (p=0.694) or hunting abroad (p=1.000) did not significantly affect the IgG positivity. Also,
no statistical correlation was found between a history of an arthropod (tick, louse, or flea) bite and
rickettsial seropositivity (p=1.000). To our knowledge, this is the first study that demonstrates rickettsial
seropositivity among human population in northern Cyprus. Our study suggests that awareness should be
raised among the people especially involved in outdoor activities such as hunting, and control programs
should be implemented to prevent possible rickettsiosis cases. Further serological studies using other
Rickettsia spp. antigens, as well as molecular studies that search for Rickettsia spp. in humans, animals
and arthropods are needed to obtain more comprehensive data on rickettsiosis in northern Cyprus.


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