Several studies have been carried out in Morocco on Salmonella contamination in humans, domestic and wild animals, food products, and the environment. This bacterial genus is responsible for several infections and foodborne illnesses worldwide. The epidemiological situation of contamination by Salmonella is worsened by the development of antibiotic resistance to the main antibiotics used in human and veterinary medicine. The purpose of this study was to review the leading research carried out in this field, emphasizing the antibiotic resistance of this bacterium to antibiotics in humans and animals. Although some studies could not demonstrate the presence of Salmonella in the environments studied, the prevalence of contamination remained relatively high in humans, animals, food products, and the environment. The most critical contaminations were observed in poultry farms and poultry meat. Salmonella causes 42.8% of food poisoning cases in Morocco. It is the second most common cause of poisoning after pesticide poisoning. Morocco ranks first in the Middle East and North Africa for human salmonellosis, with a prevalence of 17.9% (1997-2012). Its prevalence in food products, especially those of animal origin, is very high and could reach 52.9% in turkey meat. Food products have been studied more for their contamination by Salmonella species. Meat products accounted for 17.35% of food poisoning cases. This study revealed that the isolation rate of Salmonella from food products of animal origin was dominated by isolations from meat products, with prevalence rates of 41.76 % from red meat and meat products and 25.88% from poultry meat, followed by prevalence rates of 12.44 % from fish products and 11.80 % from eggs. On the coast of Agadir, the incidence rates of Salmonella were 6.8% and 4.1% in sediment and seawater, respectively. This occurrence was 2.38% in the surface waters of Oued Khoumane. The development of resistance, particularly multi-resistance to antibiotics of therapeutic interest in both humans and animals, is alarming, especially with the ease of transmission of the bacterium to humans and facilitates its dissemination. Research findings indicated that 93.02% of isolates of Salmonella from humans, 79.37% of the strains isolated from poultry, and 46.27% of isolates from food products were resistant to at least one antibiotic.

Based on importance of animal products safety, the purpose of this work was to assess the extent of parasitism at the wholesale market level of Inezgane and the fishing port of Agadir in Morocco. For this purpose, fieldwork aimed at direct investigation of parasites involved 366 fish pieces. This study was conducted in the period between March and June 2021. The prevalence of parasitism was 20.76%. The total number of parasites collected is 2385 including 1959 nematodes, 318 xenomas, 92 cestodes, and 16 isopods. An abundance of 6.51 and an overall intensity of 31.38. These infestation parameters varied by species and location of origin. For the qualitative analysis of the parasites, the study revealed a predominance of L3 larvae of the Anisakis nematode with a percentage of 82.14%. Xenomas had a percentage of 13.33%. As for the cestodes of Gymnorhynchus gigas, the larvae were collected from the Atlantic pomfret (Brama brama) with a percentage of 3.86%. As a result of this study, a significant positive correlation of r=0.81 was shown between the total length of the fish and the number of anisakids. The results of this study revealed that the extent of parasitism seems to be less pronounced in some species, but there is still a presence of concern.