Diseases / List of Parasitic Diseases / Disease description:

Ocular Nematode Infection in Waterfowl

INFORMATION AVAILABLE

GENERAL INFORMATION

CLINICAL CHARACTERISTICS & PATHOLOGY

INVESTIGATION & DIAGNOSIS

TREATMENT & CONTROL

SUSCEPTIBILITY & TRANSMISSION

ENVIRONMENT & GEOGRAPHY

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General and References

Disease Summary

WATERFOWL Nematode worm infection of the eye causing irritation and inflammation.

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Alternative Names (Synonyms)

  • Conjunctival nematodiasis
  • Conjunctival worm infestation
  • Oxyspirura mansoni infection

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Disease Type

 Viral

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Infectious/Non-Infectious Agent associated with the Disease

Nematode worm Oxyspirura mansoni.

Infective "Taxa"

Non-infective agents

--

Physical agents

-- Indirect / Secondary

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References

Disease Author

Debra Bourne
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Major References / Reviews

Code and Title List

B13.46.w1, B16.19.w1, B24, B32.33.w13
P4.1992.w1

Other References

Code and Title List

B91

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Clinical Characteristics and Pathology

Detailed Clinical and Pathological Characteristics

General

WATERFOWL Ophthalmitis: inflamed and irritated eye.

Clinical Characteristics

WATERFOWL Conjunctivitis and excessive lachrymation (eyes watery and inflamed), third eyelid (nictitating membrane) swollen and inflamed and often in constant motion. Blepharitis (excessive blinking), although later eyelids may become stuck together with cheesy white material beneath them. Can progress to destruction of the eyeball (P4.1992.w1, B13.46.w1, B16.19.w1, B24, B32.33.w13).

Incubation

WATERFOWL --

Mortality / Morbidity

WATERFOWL Rare disease (B13.46.w1).

Pathology

WATERFOWL Conjunctivitis, nictitating membrane swollen and inflamed, eyelids may be stuck together with cheesy white material beneath them. Can progress to destruction of the eyeball (P4.1992.w1, B13.46.w1, B16.19.w1, B24, B32.33.w13).

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Human Health Considerations

--

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Susceptibility / Transmission

General information on Susceptibility / Transmission

WATERFOWL
  • Susceptibility: All species may be susceptible (B13.46.w1).
  • Transmission: by cockroaches (intermediate host) (P4.1992.w1, B24).

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Disease / Agent has been reported in either the wild or in captivity in:

WATERFOWL Host Species List

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Disease / Agent has been specifically reported in Free-ranging populations of:

--

WATERFOWL Host Species List

--

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Environment/Geography

General Information on Environmental Factors/Events and Seasonality

--

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Regions / Countries where the Infectious Agent or Disease has been recorded

Parasite occurs in many countries (B24).

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Regions / Countries where the Infectious Agent or Disease has been recorded in Free-ranging populations

--

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General Investigation / Diagnosis

General Information on Investigation / Diagnosis

WATERFOWL Clinical signs, presence of slender, thread-like worms, 10-19mm long in the eye: N.B. worms may no longer be present once the disease has progressed to severe clinical signs (B13.46.w1, B16.19.w1, B24, B32.33.w1).
Related Techniques
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Similar Diseases (Differential Diagnosis)

WATERFOWL --

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Treatment and Control

Specific Medical Treatment

WATERFOWL
  • Topical application of dilute ivermectin (B13.46.w1).
  • Topical tetramisole, 2-3 drops of 10% solution; or 40mg/kg oral tetramisole (B24).
Related Techniques
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General Nursing and Surgical Techniques

WATERFOWL Removal of worms manually, irrigation of the eye to flush out worms (B13.6.w1, B16.19.w1).
Related Techniques
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Preventative Measures

Vaccination WATERFOWL --
Prophylactic Treatment

WATERFOWL

--
Related Techniques

--

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Environmental and Population Control Measures

General Environment Changes, Cleaning and Disinfection

WATERFOWL

General improvement of hygiene. Control of the intermediate host, the cockroach Pycnoscelus (Leucophaea) surinamensis (B24, B32.33.w13)
Population Control Measures WATERFOWL --
Isolation, Quarantine and Screening WATERFOWL --
Related Techniques
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