7月11日，国家疾控局召开主题发布会，相关负责人通报，暑期人员流动增加，高温多雨，结合传染病流行规律和疫情多渠道监测结果，预计 病媒生物传染病、自然疫源性传染病、肠道传染病风险将会增加。 广东省疾控中心主任医师 李艳：患者典型症状主要表现为突起发热，全身肌肉、骨骼及关节痛，皮疹，出血及白细胞减少等。 大多数患者表现为无症状或者轻症，少数发展为重症登革热，表现为严重出血、休克及重要脏器损伤，严重者甚至死亡。 老人、孕妇以及患糖尿病、高血压和冠心病等基础疾病患者感染登革病毒后，容易发展为重症患者。 在这里也提醒公众，在登革热流行季节，如果伊蚊分布地区的市民出现上述症状，应及时到医院就诊。 感染了登革热怎么办？专家来支招 近期，我国南方部分省份已经进入夏季登革热高发期。发布会上，相关专家介绍，登革热由登革病毒感染导致，是经伊蚊叮咬传播的一种急性 传染病。我国常年有登革热输入病例报告，每年夏秋季在部分南方省份会发生本地传播疫情。 国家疾控局新闻发言人 席晶晶：随着夏季蚊虫进入活跃期，部分南方省份发生登革热等蚊媒传染病本土疫情的风险逐步上升，发热伴血小板 减少综合征等蜱传疾病，在局部地区存在发生聚集性疫情风险。手足口病 ...

Group 1 - The article highlights that mosquitoes are responsible for approximately 780,000 deaths annually, making them the deadliest animals globally [1][6][5] - In China, mosquito-borne diseases such as dengue fever and malaria are on the rise, with dengue cases experiencing a significant increase in recent years [2][9][11] - The distribution of mosquitoes in China is not limited to southern provinces; several northern provinces also have high mosquito populations [15][17] Group 2 - The main mosquito-borne diseases in China include dengue fever, malaria, and Japanese encephalitis, all of which can have severe health impacts [9][11] - Dengue fever is currently the most concerning mosquito-borne disease in China, with a rapid increase in cases reported in 2023 [9][11] - The spread of mosquito-borne diseases is closely linked to economic development, population mobility, and climate change, with global dengue cases increasing approximately 30 times over the past 50 years [11] Group 3 - The most common mosquito species in China include Aedes albopictus, Culex pipiens, and Anopheles sinensis, with a total of 418 known species [19] - Mosquito activity peaks at specific times, with different species exhibiting varying feeding patterns, which can influence their impact on human populations [20][21] - Mosquito saliva contains allergens that can cause significant immune responses in humans, leading to more severe reactions to bites from certain species [25]