Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a global health threat. This virus is the causative agent for coronavirus disease 2019 (COVID-19). Pandemic prevention is best addressed through an integrated One Health (OH) approach. Understanding zoonotic pathogen fatality and spillover from wildlife to humans are effective for controlling and preventing zoonotic outbreaks. The OH concept depends on the interface of humans, animals, and their environment. Collaboration among veterinary medicine, public health workers and clinicians, and veterinary public health is necessary for rapid response to emerging zoonotic pathogens. SARS-CoV-2 affects aquatic environments, primarily through untreated sewage. Patients with COVID-19 discharge the virus in urine and feces into residential wastewater. Thus, marine organisms may be infected with SARS-CoV-2 by the subsequent discharge of partially treated or untreated wastewater to marine waters. Viral loads can be monitored in sewage and surface waters. Furthermore, shellfish are vulnerable to SARS-CoV-2 infection. Filter-feeding organisms might be monitored to protect consumers. Finally, the stability of SARS-CoV-2 to various environmental factors aids in viral studies. This article highlights the presence and survival of SARS-CoV-2 in the marine environment and its potential to enter marine ecosystems through wastewater. Furthermore, the OH approach is discussed for improving readiness for successive outbreaks. This review analyzes information from public health and epidemiological monitoring tools to control COVID-19 transmission.
Ibrahim Eldaghayes(6-2022)

Grouper fish mortality at the East Cost Libyan area of the Mediterranean Sea is one of the major problems encountered at autumn season starting from October. Sudden environmental changes associated with water pollution were recorded. Adult fish especially the grouper types were affected. This phenomenon was previously recorded in Libya at 1985. The present study was carried out to demonstrate the most prevalent isolates that may lead to this phenomenon. It was found that the gram negative oxidase positive bacterial group (Pasteurella, Vibrio and Aeromonas spp.) were the most isolated bacteria with high incidence refers especially to Pasteurella piscicida with an incidence of 64%. Black or metallic colour cysts (Microspordiosis, Glugea spp. and Plistophora spp.) representing spores or larvae of this parasite were observed on the visceral organs and abdominal cavity. Other parasites included larval stages of Contracaecum spp. and Gonapodasmius epinepheli (Didymozoid digenes). The clinical and postmortem lesions were mostly characterized by unilateral or bilateral corneal opacity and haemorrhagic spots on the skin with ulcer formation in some cases. Abdominal distension and anal prolaps were also recorded. All the internal organs were congested. The swim bladder was greatly swollen and filled with gas.
Ibrahim Eldaghayes(9-2011)

Foot-and-mouth disease (FMD) affects the livestock industry and socioeconomic sustainability of many African countries. The success of FMD control programs in Africa depends largely on understanding the dynamics of FMD virus (FMDV) spread. In light of the recent outbreaks of FMD that affected the North-Western African countries in 2018 and 2019, we investigated the evolutionary phylodynamics of the causative serotype O viral strains all belonging to the East-Africa 3 topotype (O/EA-3). We analyzed a total of 489 sequences encoding the FMDV VP1 genome region generated from samples collected from 25 African and Western Asian countries between 1974 and 2019. Using Bayesian evolutionary models on genomic and epidemiological data, we inferred the routes of introduction and migration of the FMDV O/EA-3 topotype at the inter-regional scale. We inferred a mean substitution rate of 6.64 × 10−3 nt/site/year and we predicted that the most recent common ancestor for our panel of samples circulated between February 1967 and November 1973 in Yemen, likely reflecting the epidemiological situation in under sampled cattle-exporting East African countries. Our study also reinforces the role previously described of Sudan and South Sudan as a frequent source of FMDVs spread. In particular, we identified two transboundary routes of O/EA-3 diffusion: the first from Sudan to North-East Africa, and from the latter into Israel and Palestine AT; a second from Sudan to Nigeria, Cameroon, and from there to further into West and North-West Africa. This study highlights the necessity to reinforce surveillance at an inter-regional scale in Africa and Western Asia, in particular along the identified migration routes for the implementation of efficient control measures in the fight against FMD.
Ibrahim Eldaghayes(4-2022)