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Table 1 Clinical manifestations, gender, age at onset of clinical signs, serology, polymerase chain reaction (PCR), laboratory abnormalities, therapy and response to therapy among individual dogs of a cluster of canine leishmaniosis caused by Leishmania infantum

From: Early onset of clinical leishmaniosis in a litter of pups with evidence of in utero transmission

Dog identity

Gender

Clinical signs

Age of onset of clinical signs in months

ELISA serology

PCR positivity and locia

PCR-positive tissue

Hematological and biochemical changes

Treatment

Response to treatment

Puppy 1

Female

Nasal, truncal and pinnal crusty exfoliative dermatitis; peripheral lymphadenomegaly; keratoconjunctivitis; fever; right hind limb lameness

2

Positive

kDNA, ITS1

 

Leukocytosis; hyperproteinemia; hypergammaglobulinemia; increased liver enzymes; normochromic, normocytic anemia

Allopurinol

Clinical remission within 3 months

Puppy 2

Female

Nasal alopecia and mild exfoliative periocular dermatitis

2.5

Positive

kDNA, ITS1

Lymph node, blood, conj.

Lymph node, blood

No abnormalities

Allopurinol

Clinical remission within 3 months

Puppy 3

Male

Pinnal and periocular exfoliative dermatitis

2.5

Positive

kDNA

Blood, conj.

No abnormalities

Allopurinol

Clinical remission within 3 months

Puppy 4

Female

Localized alopecia of nasal planum

2.5

Negative

ITS1

Conj.

No abnormalities

Allopurinol

Clinical remission within 3 months

Puppy 5

Male

Localized nasal ulcer; diarrhea and vomiting; conjunctivitis

2.5

Positive

kDNA, ITS1

Lymph node, conj.

Hypergammaglobulinemia

Allopurinol

Clinical remission within 3 months

Puppy 6

Male

Pinnal alopecia

3.5

Positive

kDNA, ITS1

Lymph node, blood, conj.

Hyperproteinemia; hypergammaglobulinemia

Allopurinol

Clinical remission within 3 months

Puppy 7

Male

Cutaneous nasal planum ulcer

6

Negative

kDNA, ITS1

Skin

No abnormalities

Allopurinol

Clinical remission within 3 months

Puppy 8

Female

  

Negative

kDNA, ITS1

Blood, conj.

No abnormalities

  

Puppy 9

Male

  

Negative

kDNA, ITS1

Conj.

No abnormalities

  

Sire

Male

Exfoliative dermatitis; keratoconjunctivitis; weight loss, weakness

25

Positive

kDNA

Lymph node, semen

Not performed

Allopurinol

Clinical remission within 3 months

Dam

Female

  

Negative

kDNA, ITS1

Lymph node, blood, conj.

No abnormalities

  
  1. ELISA Enzyme-linked immunosorbent assay, conj. conjunctival swab
  2. aTargeted loci found to be PCR positive; PCR targeting the Leishmania kinetoplast minicircle (kDNA); Leishmania ribosomal operon internal transcribed spacer 1 (ITS1) region