US research confirms for the first time that sars-cov-2 cannot be transmitted by mosquitoes
A study by Kansas State University has confirmed that the new coronavirus cannot be transmitted to humans through mosquitoes. The new study provides the first conclusive experimental data to support the World Health Organization (who) assertion that mosquitoes cannot transmit the new coronavirus, researchers said in a paper published in the journal scientific report on the 17th.
As to whether the novel coronavirus can be transmitted through mosquitoes, WHO clearly stated that it could not, saying, "no information or evidence indicates that the new coronavirus can be transmitted by mosquitoes". This conclusion is based on the observation results of other coronavirus studies, and there is no conclusive experimental data to support this conclusion.
In order to find the relevant scientific evidence, the research team of the Institute of biosafety of Kansas State University conducted targeted experimental research. They tested the ability of the new coronavirus to infect and replicate in three common and widely distributed mosquitoes by intrathoracic inoculation. These three species, Aedes aegypti, Aedes albopictus and Culex quinquefasciatus, represent the two most important arbovirus genera that infect humans. The researchers said that intrathoracic inoculation is the most extreme way to attack mosquitoes. If the new coronavirus does not replicate in the mosquito after intrathoracic inoculation, the possibility of transmitting the virus can still be ruled out even if the mosquito sucks the blood of patients with the virus.
The new coronavirus was detected in samples collected within two hours after inoculation, confirming that the virus could be effectively transmitted to mosquitoes; however, the virus was not detected in 277 samples collected at all time points 24 hours after inoculation. The researchers concluded that the new coronavirus could not replicate in mosquitoes and that mosquitoes would not be a vector of the virus.
The researchers pointed out that the new research has answered the public's question about whether the new coronavirus can be transmitted through mosquitoes with scientific data, indicating that even under extreme conditions, the virus cannot replicate in mosquitoes, and mosquitoes that ingest blood containing the virus cannot transmit the virus to humans.