Zoonotic parasitic infections is one of the global public health issues. The complex parasite transmission allows for the relationship between people, animals, vectors, and the environment. The existence of rat in the environment has an important role as a host and reservoir for various types of ecto and endoparasites. This study was conducted to collect informative data on the parasitic infection of wild rats in Blimbing sub-district, Malang city, East Java. A total number of eight wild rat were captured using live-traps from landfills during 4 days. They were classified by sex, weight and body length. The rats were anesthetized, collecting for any ectoparasites and then their carcasses were dissected for examinations of endoparasites. The result of this study show succesfull live-trap of rodents including Rattus norvegicus (87.5%) and Suncus murinus (12.5%). 50% of sampled rodents were male, 37.5% were female, and 12.5% of female the musk shrew. The presence of helminthes infection in all wild rats, namely Hymenolopis nana, Syphacia obvelata, Nippostrongylus brasiliensis. Furthermore, the ectoparasites identification were Xenopsylla cheopis, Echinolaelap echidninus, and blood protozoa identifications Trypanosoma lewisi. Based on the results show 100% of wild rats positive infections of endo-ectoparasites. This study indicates to continuous study among rodents’ parasites in wild rats in different urban areas and analysis of their potential impact on public health.

Bisphenol A (BPA) is an environmental defilement released mainly from polycarbonate plastic and epoxy resins. The main toxicological impact of BPA is its endocrine disruptor activities. Its structural features confer the ability to bind to both estrogen receptor (ER) subtypes. Furthermore, we recently reported that BPA aggravates male reproductive hormones. In addition to its endocrine disruptor properties, we have also reported that BPA possesses oxidant activity which is able to trigger oxidative stress. Several types of research previously reported that oxidative stress may cause hormonal imbalance and vice versa. However, the relation of both the toxicological properties of BPA is poorly understood. In this study, we found that oral testosterone undecanoate treatment in BPA-induced rats does not prevent decreasing serum superoxide dismutase, glutathione peroxidase, and catalase, and increasing serum malondialdehyde. Oral N-acetyl cysteine (NAC) in BPA-induced rats also does not attenuate decreasing total testosterone levels. These results suggest that the oxidant effect and endocrine disruptor property of BPA can be separated and might not interfere with one another. Therefore, future treatment in any pathological condition resulting from BPA exposure has to be carried out with more comprehensive approaches rather than focusing on its endocrine disruptor activity.

As an annual Muslim celebration, Eid al-Adha Feast is celebrated every year in Malang City. In 2019 feast, animals were sacrificed in Malang City consisting of 1202 cattle, 3572 goats and 302 sheep. Antemortem and postmortem examination were very important steps to ensure the quality of consumable animal product produced during the feast. The importance of these examination was to prevent zoonotic food-borne and transmissible disease from contaminated animal product to other livestocks nearby. Fascioliosis was listed into routine disease check due to its potential to reduce the quality of animal product, especially the liver. This study was held in 5 sub-districts in Malang City according to descriptive data collected by interview and structural questionnaire as well as visual observation. The result showed that fascioliosis happened in 26,03% of cattle, 2,93% of goats, and 1,32% of sheep being slaughtered. We also analized several risk factors influencing fascioliosis incidence rate such as body score condition and age. The fascioliosis tent to happen in medium and mature animal by age in respectively 31,62% of cattle, 54,28% of goats, and 75% of sheep. Thus, prevention and curative evaluation of fascioliosis should be continuously developed in order to provide excellent animal products.

Trypanosomiasis merupakan penyakit yang disebabkan oleh protozoa darah ekstraseluler berflagela yaitu Trypanosoma sp. Trypanosoma lewisi adalah parasit darah pada tikus, yang ditularkan oleh pinjal Xenopsylla cheopis. Walaupun parasit ini bersifat non patogen, tetapi keberadaannya dapat mengancam kesehatan manusia. Kasus infeksi T. lewisi pada manusia telah dilaporkan di Thailand dan India, yang mengindikasikan bahwa penyakit ini dapat menginfeksi manusia dalam beberapa keadaan yang belum diketahui. Penelitian ini bertujuan untuk mengidentifikasi T. lewisi berdasarkan morfologi dan morfometrik serta dilakukan perhitungan prevalensi dan pemetaan spasial kasus infeksi T. lewisi pada tikus liar di Malang. Sebanyak 74 ekor tikus dikumpulkan dari berbagai wilayah di Malang dengan menggunakan perangkap hidup tunggal. Hasil penelitian menunjukkan prevalensi infeksi T. lewisi pada tikus liar di Malang dari bulan Agustus sampai Oktober 2020 sebesar 17,5%. Analisis data menggunakan uji chi-square dan uji Fisher, diperoleh hasil tidak ada hubungan atau korelasi yang signifikan antara infeksi T. lewisi dengan jenis kelamin dan umur tikus. Morfologi T. lewisi memiliki posterior tipis dengan kinetoplas oval di sub-terminal, dan nukleus di anterior. Secara morfometrik, T. lewisi memiliki panjang rata-rata 33,19 μm, lebar 3,52 μm, panjang inti 7,82 μm, lebar inti 3,05 μm, panjang kinetoplas 5,25 μm, serta jarak inti ke kinetoplas 10,79 μm. Dari hasil di atas dapat disimpulkan bahwa Trypanosoma lewisi menginfeksi tikus liar dan hasil gambaran geografis didapatkan bahwa terdapat risiko penyebaran penyakit trypanosomiasis di wilayah Malang.

Oregano leaves (Origanum vulgare) are potentially known as antibacterial agent. Colibacillosis is an infectious disease caused by Escherichia coli as the primary agent. Besides that, E.coli reported inducing various other systemic diseases that harm human health and the economy due to the massive transmission of bacteria in humans and livestock. This study investigated the potential use of oregano leaves to overcome the growth of E. coli in the colibacillosis mice model. Mice were infected with the E. coli, then administered with oregano leaf extract with increasing doses of 5mg/kg BW, 10mg/kg BW, and 20mg/kg BW. The spleen was collected and the histopathology and histomorphometry were analyzed. Administration of oregano leaf extract showed the potential to significantly reduce the rate of tissue damage (p<0.05) through the reduction of the size of white pulp, an indicator of the immune system's active resistance in overcoming pathogenic bacterial infections. It can be concluded that oregano extract improved the white pulp enlargement of spleen.