2 1 Shi Ji Jing Ji Bao Dao·2026-01-26 15:21Group 1 - The recent outbreak of Nipah virus in West Bengal, India, has led to 5 confirmed cases, with one patient in critical condition, prompting enhanced preventive measures in neighboring countries like Thailand and Nepal [1] - Nearly 100 individuals have been placed under home quarantine, and infected patients are receiving treatment in hospitals in Kolkata and surrounding areas [1] - The Nipah virus is a zoonotic virus that can be transmitted from infected animals to humans, with symptoms including acute respiratory infections and potentially fatal encephalitis, and there is currently no approved vaccine or specific treatment available [1][4] Group 2 - The stock prices of vaccine and in vitro diagnostic (IVD) sectors surged following the news, with companies like Hualan Biological (301207) and Jindike experiencing significant gains, reaching their daily limit [1][2] - The vaccine index rose by 6.60%, with notable increases in stock prices for companies such as Hualan Vaccine (20.00%), Jindike (19.98%), and Zhifei Biological (14.87%) [2] - The market response indicates a heightened interest in companies involved in vaccine development and diagnostic testing related to the Nipah virus [1][8] Group 3 - Nipah virus is classified as a high-pathogenicity pathogen with a mortality rate ranging from 40% to 75%, and it has been recognized as a significant public health threat for over 25 years [3][5] - The virus's natural reservoir is fruit bats, which can transmit the virus through contaminated food or environments, and outbreaks have primarily occurred in South and Southeast Asia [3][5] - Current detection methods include antibody and nucleic acid testing, with companies like Zhijiang Biological and Daan Gene developing specific test kits for Nipah virus detection [6][7] Group 4 - Companies are actively developing testing solutions, with Zhijiang Biological's Nipah virus PCR test kit achieving high sensitivity and rapid results, and Daan Gene's kit also showing promising detection capabilities [7] - Research into vaccines for Nipah virus is ongoing, with some candidates entering clinical trials, and monoclonal antibodies showing potential in compassionate use [8] - The stock prices of companies involved in vaccine development, such as Watson Bio, Zhifei Bio, and Hualan Vaccine, have seen increases, reflecting investor optimism regarding potential solutions to the Nipah virus threat [8]