Herpes zoster (HZ) involving the upper cervical nerves (C2-C4), which innervate the posterior head, is rare. There have also been few reports of HZ lesions involving the greater occipital nerve (GON), which refers to the medial branch of the dorsal ramus of the second cervical nerve. Pain due to GON entrapment radiates not only to the temporo-occipital region, but also to the ear, retro-auricular and sub-auricular areas of the neck, the angle of the jaw, and the posterolateral neck. Herein, we present the case of a patient who underwent decompression surgery for referred trigeminal pain due to GON entrapment and who developed HZ one week later. Skin lesions of HZ involving the GON occurred not only in the occipital area but also in the ipsilateral ear, auricle, posterior and anterolateral neck. This case of HZ involved all cutaneous areas innervated by the C2, C3, and C4 spinal nerves. The extent of the skin lesions indicated where the pain from the GON radiated.

Background: The Korea Expert Committee on Immunization Practices (KECIP) is a key advisory body the government to develop guidelines and provide technical advisory activities on immunization policies in Korea. A recent policy study, inspired by global best practices, aims to enhance KECIP's functionality for providing timely and transparent recommendations in the face of evolving vaccine science and emerging infectious diseases like COVID-19. Methods: This study reviewed the current status of KECIP and collected expert opinions through surveys and consultations. Among the 40 panel members who were surveyed, 19 responded to a questionnaire specifically designed to assess the potential areas of improvement within KECIP. Results: The majority of respondents favored maintaining the current member count and emphasized the need for a subcommittee. Opinions varied on issues such as the length of KECIP’s term, the representation of vaccine manufacturers’ perspectives, and the chairperson’s role. However, there was a consensus on the importance of expertise, transparency, and fair proceedings within the committee. Conclusion This study underscores the pivotal role of KECIP in shaping national immunization policies, emphasizing the necessity for informed guidance amidst evolving vaccine science and emerging infectious diseases. Furthermore, it stressed the importance of enhancing KECIP’s capacity to effectively address evolving public health challenges and maintain successful immunization programs in South Korea.