Multiscreen-IP plates (Millipore) were activated, coated and blocked according to the kit manufacturer’s instructions (Mabtech). 2 × 105 freshly isolated splenocytes were added per well in triplicates with either 2 µg/ml the LYDRLASTV peptide present in both SUDV and EBOV GP38 (link), or the RPHTPQFLF peptide derived from SUDV GP38 (link), medium alone or Concanavalin A (Sigma-Aldrich). After 20 ± 2 h of incubation at 37 °C with 5% CO2, plates were developed as recommended by the manufacturer (Mabtech). Plates were analyzed using the Immunospot analyzer and software (Immunospot).
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