In 2016, China introduced universal antiretroviral therapy (ART) for all HIV-infected individuals regardless of CD4 cell count. However, the natural history and rate of CD4 count decline among heterosexually-infected individuals remain uncharacterized. Analyzing national surveillance data can address this gap and shed light on the pathogenesis of HIV in this population. We used a linear mixed-effects model to assess CD4 trajectory over time before ART initiation and estimated the median time from HIV seroconversion to reaching CD4 thresholds of < 500, < 350, and < 200 cell/mm³. From the Chinese HIV/AIDS Comprehensive Response Information Management System, 59,085 eligible individuals were identified, with 113 having data to estimate the date of HIV seroconversion. The linear mixed-effects models estimated an intercept of 23.64 (95% confidence interval [CI]: 22.41 to 24.87) and a slope of -1.32 (95% CI: -1.34 to -1.30) for males, and an intercept of 22.70 (95% CI: 21.00 to 24.40) and a slope of -1.29 (95% CI: -1.31 to -1.27) for females. The estimated median times from HIV seroconversion to reaching CD4 count thresholds of < 500, < 350, < 200 cells/mm³ were 0.97, 3.74, and 7.20 years for males, and 0.26, 3.09, and 6.48 years for females, respectively. Males consistently took longer to reach these CD4 count thresholds compared to females of the same age group. Older individuals (≥ 40 years) reached CD4 thresholds faster than younger individuals (15-29 years), indicating more rapid disease progression in older people living with HIV.

Transition from individual-level treatment to social-level intervention should be made to improve people’s daily living conditions for reducing health inequality, which is a major global public health concern. Older public assistance recipients in Japan are socially vulnerable and require healthcare, long-term care, daily living, and social care support. Understanding the diverse daily living needs among public assistance recipient subgroups would prompt the development of novel support measures in the welfare sector. Therefore, this study aimed to understand the daily life needs of older recipient subgroups (segments) created quantitatively in our previous study. We interviewed four caseworkers at municipal welfare offices in 2021; the interview data were analyzed using a qualitative descriptive method to describe the daily life needs of the five older recipient segments for each sex. Five themes of daily life needs were demonstrated: i) housing, ii) financial, iii) welfare service, iv) healthcare, and v) no daily life needs. Consequently, we identified the daily life needs of some older recipient segments, indicating the necessity for support interventions. Future research would help interview other professionals from various backgrounds to further understand the daily life needs of older recipient segments.

Complete medical examinations are a system of preventive medicine unique to Japan. In recent years, Japanese and foreigners have been aware of complete medical examinations. However, the extent to which this concept of comprehensive medical checkup is recognized in different counties is unknown. The National Center for Global Health and Medicine (NCGM) is a facility that has been performing complete medical examinations on inbound visitors since May 2016, and more than 3,500 inbound visitors have been received to date. Based on this track record, the current study analyzed trends in foreigners' demand for medical checkups in Japan. From August 2020 to July 2023, 471 foreign residents in Japan from 22 countries were received. A certain proportion of examinees (approximately 30%) underwent examinations multiple times at a frequency of once a year. In addition, inbound medical visitors resumed starting in January 2023, and 158 inbound examinees were received. Of these, 15.2% of examinees had undergone a complete medical examination at the NCGM before the COVID-19 pandemic. This suggests that inbound medical visitors and foreign residents may regularly undergo complete medical examinations. In order to continue to meet this demand, Japanese medical facilities should enhance their system for receiving such examinees.

Reflecting the experiences of the COVID-19 pandemic, the global response was reviewed by the Independent Review Panel for Pandemic Preparedness and Response. Based on the panel reports, the World Health Organization (WHO) member states decided to establish the intergovernmental negotiating body for drafting a WHO convention, agreement or other international instrument on pandemic prevention, preparedness and response, aiming for approval at the 77^th World Health Assembly in 2024 (May 27- June 1). Amidst this process, the National Center for Global Health and Medicine, Japan (NCGM), as a global health organization focusing on health system strengthening in low- and middle-income countries, from the perspective of Universal Health Coverage (UHC), provided technical inputs to the representatives of the Japanese government. This paper summarizes crucial aspects of the NCGM inputs, including maintaining essential health services delivery during a pandemic, responding to evolving demand of health workforce, and ensuring the equitable distribution of pandemic products. These aspects can contribute to not only strengthening health crisis response and preparedness, but also achieving UHC. Therefore, the concerted efforts focusing on UHC and health crisis could yield synergistic effects. In addition, another aspect stresses the importance of social protection systems beyond health sector to reach vulnerable populations experiencing hardships during the COVID-19 pandemic. Since the whole-of-government approach including social policies is covered in the draft pandemic agreement, it is hoped that the upcoming pandemic agreement will trigger each member state to expand the scope of health crisis management beyond the health sector.

According to Couinaud's definition, the cranial boundary of the caudate lobe is delineated by the three major hepatic veins. However, many branches of the caudate lobe go through the ceiling that is composed of these hepatic veins. The cranial boundary of the caudate lobe should be determined by employing the portal segmentation. We conducted a study based on the dissection of 37 colored resin liver casts to reveal the caudate branches of the liver. The paracaval portal vein branches (PCPvs) were defined as cranial portal branches from the main trunk or first-order branch of the portal vein distributed in front of the inferior vena cava, according to Kumon's classification. The PCVs were traced to reveal the cranial boundary of the caudate lobe. Results showed that in 18 cases (49%), the PCPvs reached the liver surface through the gap between the right and middle hepatic veins (type RM, n = 11), between the tiny branches of the middle hepatic vein (type M, n = 4), and between the middle and left hepatic veins (type ML, n = 3). The PCPvs did not reach the liver surface in 19 cases (type 0). No PCPvs reached the hepatic surface behind the right hepatic vein. Half of the PCPvs in the liver reached the hepatic surface beyond the boundary composed of the three major hepatic veins. Recognition of the PCPvs in the liver is indispensable to perform anatomically precise liver resections involving the major hepatic veins.

Hepatitis B and C (HBV and HCV) testing has been performed in Japan since 2002 and is subsidized by central and prefectural governments. A follow-up program for HBV- or HCV-infected persons was started at that time in Ishikawa Prefecture. This study analyzed the long-term follow-up data from this program. In total, 1029 participants in the Ishikawa Hepatitis Follow-up Program (HBV-infected, n = 535; HCV-infected, n = 494) were enrolled. Clinical data between the first visit and the most recent visit by March 2019 were collected. In the HBV-infected group, 384 persons (71.8%) were asymptomatic carriers, 133 (24.9%) developed chronic hepatitis, 15 (2.8%) developed compensated liver cirrhosis, and 3 (0.6%) developed decompensated liver cirrhosis. Ninety (16.8%) were treated with nucleotide/nucleoside analogs. Sixteen (3.0%) developed liver cancer. In the HCV-infected group, 427 persons (86.4%) developed chronic hepatitis, 46 (9.3%) developed compensated liver cirrhosis, and 21 (4.3%) developed decompensated liver cirrhosis. Forty-eight (9.7%) developed liver cancer. Three hundred and seventy-eight (76.5%) received antiviral therapy (a direct-acting antiviral in 166, interferon-based treatment followed by a direct-acting antiviral in 73, and interferon-based treatment in 139). The subsidy system was used by 270 persons (71.4%). Sustained virological response was confirmed in 340 persons (68.8%). A higher FIB-4 index at the first visit was a significant risk factor for liver cancer in HBV-infected and HCV-infected persons. The Ishikawa Hepatitis Follow-up Program has revealed the clinical course of HBV and HCV infection in community-dwelling individuals. The results will be used for micro-elimination at a prefectural level.

International travel is a risk factor for acquiring sexually transmitted infections (STIs) owing to factors such as increased sexual opportunities, a sense of freedom, and the allure of the sex industry. We investigated the incidence of travel-associated STIs in Japan using data from the Japan Registry for Infectious Diseases from Abroad (J-RIDA) reported by 17 participating medical institutions between October 2017 and December 2022. Data were collected on the patients' age, sex, nationality, chief complaint, whether they had visited a travel clinic before travel, travel history, and final diagnosis. Of 4545 cases of travel-associated illness reported, 52 (1.1%) were STIs. Most patients with STIs were male (81%) with a median age of 31 years. HIV (17%), genital herpes (13%), syphilis (13%), and gonorrhea (12%) were the most frequently reported STIs. Only one patient had visited a travel clinic before travel. Promoting awareness and vaccination is crucial for preventing travel-associated STIs.