Pronalazak nametnika Myxobolus episquamalis (Myxozoa, Myxobolidae) kod cipla glavaša, Mugil cephalus (Pisces, Teleostei, Mugilidae) u Senegalskom priobalju (istočni tropski Atlantik)

Myxobolus episquamalis (Myxozoa, Myxobolidae), a myxosporidian parasite, was found for the first time infecting scales and fins of flathead mullet (Mugil cephalus) from the Senegalese coast. The overall prevalence of infection was 4.7% (25/529), while the highest infection rates were observed in January 2006 (17.1%) and July 2006 (13.9%). This parasite forms large and white cysts which cover a great part of the fish body. According to this new report from African Atlantic coast, Myxobolus episquamalis geographical distribution is extended considerably. However, the infection is of little commercial importance and does not cause a significant economic loss in Senegal.Myxobolus episquamalis (Myxozoa, Myxobolidae), mikrosporidijski nametnik, pronađen je po prvi put u cipla glavaša (Mugil cephalus) u senegalskom priobalju. Sveukupna prevalencija infekcije iznosila je 4.7% (25/529), dok je najveća stopa infekcije zabilježena u siječnju (17.1%) i srpnju (13.9%) 2006 godine. Ovaj nametnik stvara velike bijele ciste koje pokrivaju veliki dio tijela ribe. Prema ovom nalazu s afričke obale Atlantika, njegova zemljopisna rasprostranjenost je znatna. Ipak, infekcija nema veći gospodarski značaj tj. ne uzrokuje značajan ekonomski gubitak u ribarstvu Senegala

New species of Ligophorus (Monogenea, Ancyrocephalidae), parasite of Liza spp. (Teleostei, Mugilidae) off the Northwestern African coast

International audienceNouvelles espèces de Ligophorus (Monogenea, Ancyrocephalidae) parasites de Liza spp. (Teleostei, Mugilidae) au large des côtes Nord-Ouest de l'Afrique. Cette première étude des espèces de Ligophorus Euzet & Suriano, 1977 récoltées sur des Liza spp. (Mugilidae) des côtes Nord-Ouest de l'Afrique, montre la présence de quatre espèces nouvelles. Sur Liza falcipinnis (Valenciennes, 1836) : Ligophorus gabrioni n. sp. caractérisée par une petite protubérance antéro-médiane et deux expansions symétriques de la barre transversale ventrale ; une pièce accessoire tubulaire avec une expansion distale au niveau de l'appareil copulateur mâle et un vagin non sclérifié (non visible). Sur Liza grandisquamis (Valenciennes, 1836) : Ligophorus benhoussai n. sp. caractérisée au niveau de l'appareil copulateur mâle par une très longue pièce accessoire en forme de faucille, large à la base et s'effilant vers l'extrémité distale; et un vagin en forme d'en forme d'alpha; Ligophorus bazairii n. sp. caractérisée au niveau de l'appareil copulateur mâle par une pièce accessoire tubulaire, en forme de décapsuleur ; et Ligophorus hamzati n. sp. caractérisée au niveau de l'appareil copulateur mâle par une pièce accessoire fourchue à son extrémité distale, chaque branche étant à son tour également fourchue. Liza bandialensis Diouf, 1991 : nous n'avons pas trouvé de Monogènes sur cette espèce endémique. À notre avis, les différences de richesse spécifique des Monogènes décrits sur les différents hôtes étudiés, pourraient être dues à des fluctuations de la taille des populations hôtes lors d'événements de « bottleneck » ou d'isolement de variance

Detection of Coxiella burnetii and Borrelia spp. DNA in Cutaneous Samples and in Household Dust in Rural Areas, Senegal

International audienc

Study of the behavior of snails intermediate hosts of Schistosoma spp. under different maintenance conditions and their resistance to salinity in an african laboratory environment

International audienc

Epidemiology of Non-SARS-CoV2 Human Coronaviruses (HCoVs) in People Presenting with Influenza-like Illness (ILI) or Severe Acute Respiratory Infections (SARI) in Senegal from 2012 to 2020

In addition to emerging coronaviruses (SARS-CoV, MERS, SARS-CoV-2), there are seasonal human coronaviruses (HCoVs): HCoV-OC43, HCoV-229E, HCoV-NL63 and HCoV-HKU1. With a wide distribution around the world, HCoVs are usually associated with mild respiratory disease. In the elderly, young children and immunocompromised patients, more severe or even fatal respiratory infections may be observed. In Africa, data on seasonal HCoV are scarce. This retrospective study investigated the epidemiology and genetic diversity of seasonal HCoVs during nine consecutive years of influenza-like illness surveillance in Senegal. Nasopharyngeal swabs were collected from ILI outpatients or from SARI hospitalized patients. HCoVs were diagnosed by qRT-PCR and the positive samples were selected for molecular characterization. Among 9337 samples tested for HCoV, 406 (4.3%) were positive: 235 (57.9%) OC43, 102 (25.1%) NL63, 58 (14.3%) 229E and 17 (4.2%) HKU1. The four types circulated during the study period and a peak was noted between November and January. Children under five were the most affected. Co-infections were observed between HCoV types (1.2%) or with other viruses (76.1%). Genetically, HCoVs types showed diversity. The results highlighted that the impact of HCoVs must be taken into account in public health; monitoring them is therefore particularly necessary both in the most sensitive populations and in animals