Journal of School of Public Health and

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Background and Aim: Visceral leishmaniasis (kala-azar), the most dangerous form of leishmaniasis, is endemic in some parts of Iran, e.g. Ardabil, Fars, East Azerbaijan, Bushehr and Qom provinces. In recent years, the incidence of VL has increased in the Nourabad-Mamassani district in Fars Province. This study was carried out to detect VL vectors and infection rates in this region over the 2003-2004 period.
Material and Methods: Sand flies were captured in the selected villages by means of sticky traps, aspirators and CDC miniature light traps. Heads and distal abdominal segments were used for species identification and other body parts were used for DNA extraction. We employed a semi-nested PCR technique to detect Leishmania, with specific kDNA primers (LIN R4 - LIN 17 – LIN19). Some specimens were dissected for leptomonad infection.
Results: A total of 12688 sand flies were collected. Phlebotomus (Paraphlebotomus) alexandri was the second most prevalent species (17.34%). The anthropophilic index of this species was 32.5%. Five cases (4.17%) of L. infantum infection were detected among the 120 P. alexandri examined by PCR method. We also observed two cases of leptomonad infection among the 112 dissected specimens.
Conclusion: High prevalence rates and anthropophilic index of P. alexandri plus its natural infection with L. infantum provide enough evidence to implicate this species as the main vector species of VL in the region and the second proven kala-azar vector in Iran. Besides, the Mahoor-Milaty district of Noorabad-Mamassani was identified as a new endemic focus.

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 Background and Aim: Sand flies are responsible for transmission of leishmaniasis, papatasi fever and carrion disease. Warning of sand fly population is the first step for the establishment of baseline data for the vector control operations of visceral leishmaniasis (VL). In order to attempt to the difference between species composition and bieocology of sand flies, the comparative research was carried out in west and east of Meshkinshahr district where having high and low prevalence of VL as well as mild semiarid and semiarid steppe climates respectively.

 Materials and Methods : Sand flies were biweekly collected using sticky paper traps from indoor and outdoor shelters from four villages at west and east of Meshkinshahr district. The specimens was removed from sticky paper traps and washed in acetone and preserved in 70% alcohol. The preserved sand flies were mounted using Puri’s media and identified using valid keys. The labeled specimens were deposited in Medical Entomology Museum, School of Public Health under code GC22ST6-93 .

 Results: During this study, totally 783 and 400 sand flies were respectively caught from indoor (19-27%) and outdoor (73-81%) of both at west and east. The sex ratios of collected sand flies were estimated 2.3 and 1.9. in latter areas. The genera percentage of sand flies were 66.3-64.5% for Phlebotomus and 33.7-35.5% for Sergentomyia compromising of 7 subgenera which included in 20 and 17 species respectively in west and east areas. For the first time, Se.sintoni and Se.mervynae was reported in Meshkinshahr district.

 Conclusion: The Ph.kandelakii and Ph.perfiliewi were introduced as prevalent species in the west area compared to the east. In the west area, activity duration and number of generation was higher than east. The prevalent species in the east area was Ph.papatasi. The high density of Ph.anderjevi was seen in both studied areas. The most proven vectors of visceral leishmaniasis were revealed in the west of Meshkinshahr district.

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Background and Aim: Availability of  preliminary data on fauna and distribution of forensically important insects in a region is very important. Considering absence of such data in the north of Iran, this was study was undertaken with  the aim of finding the fauna of insects on rabbit carcasses as an animal model in Babol, a city in the north of Iran.

Materials and Methods: This study was conducted in three areas, that is, urban, semi-urban and rural, in summer and autumn in 2014. Using Schoenly traps, samples were collected once daily until the decomposition of the rabbit carcasses was complete.

Results: A total of 1978 adult flies from 17 species were identified. The main fly families included Calliphoridae, Sarcophagidae, Muscidae and Fanniidae. On the whole, the families with the highest and lowest numbers were Muscidae and Phoridae, respectively. Some families of minor medical importance, such as Anthomyiidae, Sepsidae, Phoridae and Stratiomyidae, were collected in small numbers. The Sarcophaga melanura was introduced in  Iran for the first time.

Conclusion: The main finding of this study is identification of some of the most important flies and other anthropoda, which can be very helpful and useful in forensic investigations – finding time and place of death. Classification of the data on species based on their ecosystems is another important finding emphasized in this study, something of practical importance in scene of crime investigations.