Group 1: Overview of Chikungunya Fever - Chikungunya virus is spreading globally, with 119 countries reporting cases and approximately 5.5 million people at risk of infection [1] - In Foshan, Guangdong Province, over 4,000 confirmed cases have been reported, primarily mild cases [1] Group 2: Symptoms and Treatment - Chikungunya fever is characterized by high fever and severe joint pain, particularly affecting small joints [2] - There is currently no specific treatment or widely used vaccine; management is primarily supportive, focusing on symptom relief [3] Group 3: Market Response and Company Involvement - Investors are inquiring about companies with products related to Chikungunya fever, focusing on mosquito repellent products, testing kits, and antipyretic and analgesic medications [4] - Companies like Rainbow Group, Runben Co., and Weigao Medical have reported an increase in sales of mosquito repellent products [5][6] - Pharmaceutical companies such as Renhe Pharmaceutical and Xinhua Pharmaceutical have indicated they offer products for fever and pain relief [7] Group 4: Testing Products - Companies like Kehua Bio, YHLO Biotech, and Shuoshi Bio have developed testing kits for Chikungunya virus [8] - YHLO Biotech has a rapid screening kit for Chikungunya, currently used for research purposes [8] - The market interest in these companies has led to notable stock price increases since the news of the outbreak [8]

Core Viewpoint - The epidemic of Chikungunya fever in Guangdong Province remains at a high plateau, indicating a severe situation that requires attention [1]. Summary by Sections Epidemic Situation - As of July 22, 2025, Shunde District in Foshan City reported a total of 2,934 confirmed cases of Chikungunya fever, with a significant increase of 463 cases in just one day [4][5]. - The first report of the epidemic in Shunde was on July 15, 2025, with 478 confirmed cases, showing an increase of over 2,000 cases in just over a week [4]. - The World Health Organization (WHO) reported that 119 countries and regions have identified Chikungunya virus transmission, with approximately 5.5 million people at risk globally, potentially leading to widespread outbreaks [4][5]. Companies Involved in Prevention and Detection - **Runben Co., Ltd. (润本股份)**: A leading domestic company in mosquito repellent products, with a revenue of 440 million yuan in 2024, showing a year-on-year growth of 35.4% and a gross margin of 54.2% [7]. - **Rainbow Group (彩虹集团)**: A well-known pest control company in China, offering a full range of mosquito repellent products that play a crucial role in controlling Chikungunya fever [8]. - **Shanghai Jahwa (上海家化)**: The "Liushen" brand is the top brand in China for mosquito repellent flower water, holding significant brand influence in mosquito prevention and personal care [9]. - **Longyun Group (朗云集团)**: A Hong Kong-listed company that has maintained the number one market share in pest control products for ten consecutive years, with notable products performing well during the epidemic [10]. - **Kangzhi Pharmaceutical (康芝药业)**: Offers a full range of baby and child health protection products, including disinfectants and mosquito repellents, demonstrating expertise in child health protection [11]. - **Shuoshi Gene (硕世纪录物)**: Utilizes gene sequencing technology for Chikungunya fever testing, providing precise diagnostic support for epidemic prevention [12]. - **Da'an Gene (达安基因)**: Provides nucleic acid testing kits for Chikungunya virus, leveraging extensive experience in molecular diagnostics [13]. - **Huiyu Medical (会域医学)**: A leading medical testing institution in China, employing advanced technology for accurate diagnosis of Chikungunya fever [14]. - **Wansheng Biology (万学生物)**: Offers rapid testing solutions for Chikungunya virus, focusing on point-of-care testing [16]. - **Nuo Weisha (诺唯莎)**: Combines molecular design with various heat-start technologies to enhance detection efficiency for mosquito-borne viruses [17].