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Fatemeh Momeniha, Mohammad Kouhkan, Hoda Safamanesh, Parviz Yarahmadzahi, Mohammad Osman Khodayari, Ali Mohammadi, Amir Hossein Mahvi,
Volume 16, Issue 2 (9-2023)
Abstract

Background and Objective: Due to the importance of managing medical sharps waste and the potential harm caused by these types of waste, the use of safe technologies that simultaneously encapsulate and reduce their volume is considered one of the essential needs for managing medical waste in hospitals and other healthcare facilities. The main objective of this study was to investigate the efficiency of disinfecting and encapsulating device for medical sharps waste.
Materials and Methods: This device provides the process of containment and encapsulation of medical sharps waste by creating a stable protective foam without oxidation through inductive heat in a closed environment, preventing the dispersion and release of these wastes. Gas samples from the device's output were collected using the NIOSH 1501 method and analyzed using GC-MS. The performance efficiency of the device was evaluated based on the biological monitoring of the indicator bacterium Bacillus stearothermophilus.
Results: The results showed that the average concentration of BTEX gases (benzene, toluene, ethylbenzene, and xylenes) and other volatile organic compounds in the device's output was within the permissible limit. The concentrations of Benzene, Toluene, Ethylbenzene and Xylene gases were 0.04, 0.033, 0.029, and 0.029 ppm, respectively. The results of biological monitoring showed that the reduction of the microbial load was 9999.99 (Log 6) and the decontamination process was acceptable.
Additionally, this device has the advantage of reducing the volume of sharp and plastic objects during the encapsulation process, which can be further used in plastic pyrolysis/recycling industries.
Conclusion: It is hoped that by using this innovative and domestic device in the decontamination units of hospitals across the country, we can take an effective step towards improving medical waste management, reducing waste production, reducing hospital costs, and preserving and enhancing the country's health.
 

Parviz Yarahmadzahi, Fatemeh Momeniha, Abdolreza Mirolyaei, Abbas Balouchi, Mehrdad Zarabi, Danial Raisi, Abdolrasoul Khedmati, Faramarz Mobaraki,
Volume 18, Issue 3 (12-2025)
Abstract

Background and Objective: Aedes aegypti is a significant vector for the transmission of several dangerous arboviral diseases, including dengue fever, Zika, chikungunya, and yellow fever. The present study aimed to investigate the impact of environmental management and integrated methods on the control and reduction of Aedes aegypti mosquito abundance in Chabahar City in 2024.
Materials and Methods: To conduct this field study, a comprehensive environmental improvement program—based on Ministry of Health guidelines—was developed for Chabahar City to enhance integrated management measures for combating Aedes aegypti. This was accomplished by having environmental health, community health, and entomology experts complete relevant checklists during urban block surveys.To conduct this field study, a comprehensive environmental improvement program-based on the guidelines of the Ministry of Health- was developed for Chabahar City to enhance integrated environmental management measures for combating Aedes aegypti. This was accomplished by having environmental health, community health, and entomology experts complete relevant checklists during urban block surveys.
Results: The results of this study demonstrated that, following environmental improvement operations and chemical control measures in Chabahar City—and coinciding with the beginning of the cold season at the end of 1403 (2024)—the number of probable dengue fever cases declined sharply. Cases fell from a peak of 389 in November 2024 to only 8 by March 2025. This decline indicates the effectiveness of the implemented Aedes aegypti control strategies, potentially in conjunction with seasonal temperature changes.
Conclusion: Given the high prevalence of certain arboviral diseases transmitted by Aedes aegypti in neighboring countries and the continuous movement of residents in these regions, it is critical to plan and implement an immediate vector surveillance and control program to prevent the permanent establishment of this invasive mosquito species.
 


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