RT Journal Article SR Electronic(1) A1 Editorial team, Collective YR 2009 T1 Pandemic phase level 4: human cases of the novel influenza A/H1N1 strain confirmed in Scotland and Spain JF Eurosurveillance VO 14 IS 17 SP 19185 OP DO https://doi.org/10.2807/ese.14.17.19185-en UL https://www.eurosurveillance.org/content/10.2807/ese.14.17.19185-en