世界衛生組織提出狗血液無傳染性嗎？
狗血液無傳染性這句話屬於錯誤的偽科學謠言。
事實上狗血液會傳染狂犬病的。
有的狗主人手上有傷口，如果被狗血碰到了，就可能感染狂犬病毒。
狂犬病毒透過血腦屏障進入血液，進而傳染人。
Rabies 題主要的世衛的說法
People are usually infected followinga deep bite or scratch from an animal with rabies, and transmission to humans by rabid dogs accounts for 99% of cases. Africa and Asia have the highest rabies burden in humans and account for 95% of rabies deaths, worldwide.
In the Americas, bats are now the major source of human rabies deaths as dog-mediated transmission has mostly been broken in this region. Bat rabies is also an emerging public health threat in Australia and Western Europe. Human deaths following exposure to foxes, raccoons, skunks, jackals, mongooses and other wild carnivore host species are very rare, and bites from rodents are not known to transmit rabies.
Transmission can also occur when infectious material – usually saliva – comes into direct contact with human mucosa or fresh skin wounds. Human-to-human transmission through bites is theoretically possible but has never been confirmed.
Contraction of rabies through inhalation of virus-containing aerosols or through transplantation of infected organs is rare. Contracting rabies through consumption of raw meat or animal-derived tissue has never been confirmed in humans.
另外附一個
Common Misconceptions About Rabies - Humane Animal Removal Houston Dallas Fort-Worth | Animal Relocation
Rabies is NOT transmitted through the blood, urine, or feces of an infected animal, nor is it spread airborne through the open environment. Saliva provides the primary transmission medium when the animal is in the clinical stage of rabies. For the rabies virus to get to the salivary glands, it has to travel first from the site of entry (usually a bite wound) through the animal』s nervous system, then to the brain. This is what causes most rabid animals to exhibit abnormal behaviors, depending on what part of the brain is infected. Finally, the virus travels to the salivary glands during the terminal stage of rabies, prior to death. It is this later stage of rabies when an animal is most infectious because the virus is in the saliva.
只有發病終末期理論上可能（也只是理論上可能）病毒反向透過血腦屏障進入血液，但沒有傳染人的確切案例，世衛組織都沒有把暴露於狗血作為需要接種疫苗的條件，真有風險的話早寫入文件了。
除非你從事狗肉屠宰加工等行業，否則正常情況下是完全不需要擔心狗血傳染的，潛伏期甚至發病早期的狗血液中不會有狂犬病毒，這個確定，終末期或剛死的狗血中是不是有沒有病毒其實都還不一定，也就是理論感染風險。
如果真的是在屠宰狀態明顯不正常的狗，或處理來歷不明狗屍體的過程中傷口碰到狗血，實在擔心可以考慮預防性接種。
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