Table 4

Validation participants with a discrepancy between SARS-CoV-2 RT-PCR and the response from two dogs or more

ParticipantsDog responseRT-PCR (viral load)SymptomsTime between symptom onset and skin swab/between RT-PCR test and skin swab, daysAntibody test (time between RT-PCR test and antibody test), daysCommentSARS-CoV-2 infection status (variant*, if available)
Fever, rhinitis, diarrhoea9/5Positive (33)Close relative PCR positivePositive (alpha)
Headache, cough, muscle pain4/3NA†Relative and close contact PCR positivePositive (alpha)
AsymptomaticNA/5NA6-year-old child. Two relatives PCR positivePositive (wild-type)‡
Fever, cough, loss of taste and smell, headache9/5Positive (48)Relative PCR positivePositive (alpha)
Sore throat, headache fever0/0NA11-year-old-child. Four relatives PCR positivePositive (NA)
Cough, muscle pain, loss of taste and smell, headache3/2NATwo relatives PCR positivePositive (alpha)
VL7NegativePositive (medium)Aches, tiredness, headache3/2Positive (108)Close contact with PCR positivePositive (alpha)
VL8NegativePositive (medium)Tiredness, sore throat, muscle pain, headache, loss of taste and smell, diarrhoea3/2NAClose contact with PCR positivePositive (alpha)
VL9PositiveNegativeAsymptomaticNA/0Positive (99)Three PCR negative within 2 weeksPossible positive
VL11PositiveNegativeAsymptomaticNA/3Negative (85)Two PCR negative within 3 daysNegative
VL12PositiveNegativeAsymptomaticNA/0Negative (72)Three PCR negative within 5 daysNegative
VL13PositiveNegativeAsymptomaticNA/0NAPCR negative month after dog test.Uncertain
VL15PositiveNegativeAsymptomaticNA/0NATwo PCR tests negative within 3 daysUncertain
VL16PositiveNegativeAsymptomaticNA/0Negative (82)Three PCR negative tests within 3 daysNegative
VL17PositiveNegativeAsymptomaticNA/0Negative (95)Two PCR negative tests within 3 daysNegative
VL18PositiveNegativeAsymptomaticNA/1Negative (83)Two PCR positiveNegative
VL19PositiveNegativeHeadache, coughNA/2Negative (68)Negative
  • *Variant, SARS-CoV-2 variant status was determined using S-Gene Target Failure, N501Y Mutation PCR and/or gene sequencing combined with epidemiological information (first alpha variant cases were detected 18 December in Finland).

  • †NA, not available.

  • ‡Wild-type, refers to Wuhan like non-VoC lineages.

  • RT-PCR, reverse transcriptase-polymerase chain reaction.