Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单
| | A | | 1 | | | B | | b | | | C | | 人才招聘 | | | D | | | | | E | | 电子 | | | F | | f | | | G | | 克 | | | H | | h | | | I | | 我 | | | J | | j | | | K | | k | | | L | | 升 | | | M | | 米 | |
| | N | | n | | | O | | o | | | P | | p | | | Q | |常见问题 | | | R | | 研究 | | | S | | | | | T | | 吨 | | | U | | u | | | V | | v | | | W | | 瓦特 | | | X | | x | | | Y | | y | |
Causes of Respiratory tract infection原因呼吸道感染
Most URTIs are caused by viruses.最乌尔蒂斯所造成的病毒。
LRTIs are caused by both viruses and bacteria. lrtis所造成双方病毒和细菌。 People with poorly functioning immune systems are prone to catching fungal lung infections.人与运作不良的免疫系统很容易赶上真菌肺部感染。









