Palatability Testing of a New Paediatric Formulation of Valacyclovir

Inclusion Criteria: * Subject is at least 4 years of age. * Subject weighs at least 15kg. * Subject is capable of performing the taste assessment, according to the investigator's judgement. * The child and parent(s) are willing to participate in the taste assessment. * Signed informed consent by the legal guardian for participation of the child and if the parent also wants to participate: signed informed consent for their own participation, prior to start of the study. Exclusion Criteria: * Documented history of sensitivity/idiosyncrasy to medicinal products or excipients. * Presence of any condition that influences taste sensation (such as upper respiratory infection, febrile illness within 3 days before the first dose, mucositis or use of medication that influences taste perception, as described in the label information).