# First simultaneous identification of Moraxella bovoculi and Moraxella bovis in one-humped camel (Camelus dromedaries) in the Sahara Desert

**Authors:** María de los Ángeles Ramo, Saleh Mohamed Lamin, Lochaa Mustafa, Embarek Mohamed Salem, Mohamed Chacha, Mariam Salma Muftah, Maite Rodríguez, Jaime Aranda, Alba Solsona, Luis Alcaraz-Rico, José-Alfonso Abecia

PMC · DOI: 10.1007/s11250-025-04836-3 · Tropical Animal Health and Production · 2026-01-13

## TL;DR

This study reports the first case of two Moraxella species causing eye infections in camels in the Sahara, highlighting the need for better disease monitoring in refugee areas.

## Contribution

First simultaneous detection of Moraxella bovoculi and Moraxella bovis in dromedary camels in the Sahara.

## Key findings

- Moraxella bovoculi and Moraxella bovis were detected in camels with ocular lesions.
- Treatment with oxytetracycline led to clinical recovery in all affected camels.
- Other pathogens were not detected, suggesting Moraxella spp. as primary causes.

## Abstract

This study describes the first simultaneous identification of Moraxella bovoculi and Moraxella bovis in dromedary camels from the Sahrawi refugee camps in Tindouf, Algeria. Four lactating camels showing ocular lesions including conjunctival hyperemia, lacrimation, keratoconjunctivitis, and inflammation of the third eyelid were examined. Ocular swabs were collected and analyzed using real-time PCR for major bacterial and viral ocular pathogens. Only M. bovoculi (Cq 27) and M. bovis (Cq 36) were detected, while all other agents tested negative. Clinical recovery was achieved in all animals after topical treatment with oxytetracycline. The findings suggest a possible polymicrobial etiology, as has been described in cattle, and highlight the susceptibility of camels to pathogens traditionally associated with infectious bovine keratoconjunctivitis. The absence of other pathogens reinforces the role of Moraxella spp. as primary etiological agents in these cases. This report provides new insights into camel ocular health and emphasizes the importance of early diagnosis and treatment under field conditions. Moreover, it underscores the need to strengthen disease surveillance and preventive strategies in humanitarian contexts, where camel health is closely linked to the food security and livelihoods of displaced populations.

## Linked entities

- **Chemicals:** oxytetracycline (PubChem CID 54675779)
- **Species:** Moraxella bovoculi (taxon 386891), Moraxella bovis (taxon 476)

## Full-text entities

- **Diseases:** ulcers (MESH:D014456), ocular infections (MESH:D015817), conditions (MESH:D020763), ocular disease (MESH:D005128), infections (MESH:D007239), lacrimation (MESH:D007767), ocular lesions (MESH:D015821), blindness (MESH:D001766), corneal edema (MESH:D015715), hyperemia (MESH:D006940), corneal ulcer (MESH:D003320), inflammation (MESH:D007249), keratoconjunctivitis (MESH:D007637), corneal opacity (MESH:D003318), chlamydial (MESH:D061387), infectious keratoconjunctivitis (MESH:D007639), zoonotic diseases (MESH:D015047), conjunctival hyperemia (MESH:D003229), weight loss (MESH:D015431)
- **Chemicals:** oxytetracycline (MESH:D010118)
- **Species:** Moraxella canis (species) [taxon 90239], Moraxella bovoculi (species) [taxon 386891], Bacteria Latreille et al. 1825 (Bacteria stick insect, genus) [taxon 629395], Chlamydia (genus) [taxon 810], Homo sapiens (human, species) [taxon 9606], Moraxella bovis (species) [taxon 476], Moraxella ovis (species) [taxon 29433], bovine alphaherpesvirus 1 (no rank) [taxon 10320], Bos taurus (bovine, species) [taxon 9913], Coxiella burnetii (species) [taxon 777], Mycoplasmopsis bovis (species) [taxon 28903], Camelus dromedarius (Arabian camel, species) [taxon 9838], Mesomycoplasma conjunctivae (species) [taxon 45361]

## Full text

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## Figures

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Source: https://tomesphere.com/paper/PMC12799698