2026 The Suffolk Source | United Suffolk Sheep Association

COMMON SHEEP DISEASES: RECOGNITION, PREVENTION & MANAGEMENT

QUICK REFERENCE SUMMARY

KEY NOTES

DISEASE

TREATABLE?

VACCINE? PREVENTABLE? EMERGENCY?

INFECTIOUS DISEASES

CASEOUS LYMPHADENITIS (CLA) OVINE PROGRESSIVE PNEUMONIA

CULL, ISOLATE, SHEARING HYGIENE

NO

YES

LIMITED

NO

TEST-AND-CULL, CLOSED FLOCK

NO

NO

LIMITED

NO

BIOSECURITY, TEST-AND-CULL TRIM, FOOT BATH, QUARANTINE, DRY ENVIRONMENT GLOVES, VACCINE IF ENDEMIC

JOHNE’S DISEASE

NO

NO

LIMITED

NO

FOOT ROT / FOOT SCALD

YES

NO

YES

NO

SOREMOUTH (ORF)

SELF-LIMITING

YES (LIVE)

YES

NO

CDT VACCINATION, FEED MGMT

ENTEROTOXEMIA

OFTEN FATAL

YES (CDT)

YES

YES

PARASITIC DISEASES

HAEMONCHUS CONTORTUS

FAMACHA, RESISTANCE MGMT

YES

NO

PARTIAL

SEVERE CASES

SANITATION, REDUCE CROWDING

COCCIDIOSIS

YES

NO

YES

NO

NUTRITIONAL & METABOLIC DISEASES

PREGNANCY TOXEMIA (KETOSIS)

BCS MONITORING, ENERGY MGMT

EARLY ONLY

NO

YES

YES

SE/VIT E SUPPLEMENTATION

WHITE MUSCLE DISEASE

VARIABLE

NO

YES

SUDDEN DEATH

PREGNANCY TOXEMIA (KETOSIS)

BCS MONITORING, ENERGY MGMT

EARLY ONLY

NO

YES

YES

REPRODUCTIVE DISEASES

VACCINATE PRE-BREEDING

CHLAMYDIAL ABORTION

NO

YES

YES

NO

CAMPYLOBACTER ABORTION

VACCINATE PRE-BREEDING

LIMITED

YES

YES

NO

CAT CONTROL, PROTECT FEED

TOXOPLASMOSIS

NO

NO (U.S.)

LIMITED

NO

RESPIRATORY DISEASES

VENTILATION, REDUCE STRESS

PNEUMONIA

YES

LIMITED

PARTIAL

ACUTE CASES

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