博拓生物：2025年净利润4679.57万元，同比下降72.39%

Group 1 - The core viewpoint of the article indicates that 博拓生物 experienced a significant decline in both total revenue and net profit for the fiscal year 2025, with total revenue at 448 million yuan, down 19.85% year-on-year, and net profit at 46.8 million yuan, down 72.39% year-on-year [1] Group 2 - In the first half of 2025, the company's export sales to the United States decreased due to multiple tariff increases imposed by the U.S. government, leading to significant market fluctuations [1] - The domestic sales of respiratory detection products and dengue fever products in Latin America were negatively impacted by intensified industry competition and cyclical fluctuations in the infectious disease testing market, resulting in a year-on-year decline in revenue [1]