Original title: regional key feature: Zika virus diffusion increased mosquito control and self protection is still
Xinhua news agency, Geneva, September 8,   regional key feature: Zika virus diffusion increased mosquito control and self protection is still
Xinhua News Agency reporter Zhang Miao
Just over a year, Zika virus spread in the Americas, spread to Southeast Asia and Africa, the regional diffusion speed makes the unexpected. In the scientific community, there is a significant cognitive gap in the field of the walled card virus, and there is no effective vaccine, the control of the mosquito and the self defense is still a powerful weapon against the walled card.
Regional diffusion
“ is a mosquito into the disaster ”, I am afraid not enough to express the complexity of the spread of the epidemic.
Since the outbreak last year Zika in America, 69 countries and regions have reported mosquito borne Zika virus, the United States, France, Germany, New Zealand and other 11 countries this year have found evidence of Zika virus interpersonal communication.
The latest WHO Zika virus epidemic report pointed out that from April to June this year, Zika virus diffusion rate eased, with the northern hemisphere summer, mosquito activity increased 7 in August, the virus has intensified regional diffusion.
At the end of 8, the British Virgin Islands and Singapore has become the latest Zika virus affected countries and regions. Especially in Singapore, in more than 1 weeks, the number of local cases of transmission from 0 cases to 275 cases. Alarming is that the Southeast Asian region of Indonesia, Thailand, Philippines and Vietnam have reported the mosquito borne evidence of local spread of the virus.
Earlier this month, the World Health Organization Zika virus held the fourth emergency committee, pointed out that the regional diffusion, the scientific community for Zika virus surviving significant cognitive gap and other factors, Zika virus infection and disease of the nervous system related to “ emergency public health emergency of international concern events ”.
With more and more countries move “ ”, to achieve local virus spread, Zika virus is rapidly from “ emergency ” to “ conventional event ”. The World Health Organization spokesman Tariq · Shah Ray Vecchi told Xinhua: “ the world health organization expects Zika virus will continue to spread, and spread to all countries and regions of Aedes aegypti. ”
Significant difference in cognition
1947, scientists for the first time in the jungle of Ganges RIver in Uganda monkey found the virus. Nearly 70 years have passed, even though Africa and Asia have repeatedly found that human infection cases, the scientific community on the risk and spread of the virus is still a serious problem.
Since last year, Zika outbreak in Brazil after the upgrade, the scientific community first attempts to determine the relationship between Zika virus and microcephaly, Green Barre syndrome and other neurological disease. The latest statement of the World Health Organization: Zika virus infection during pregnancy is caused by congenital brain abnormalities (such as microcephaly) one of the reasons, Zika virus infection induced Green Barre syndrome is also a factor.
The World Health Organization Health Emergencies planning department Peter · salamar added: “ cooperation with the scientific community, we are aware of the consequences of Zika is not limited to neonatal microcephaly, the complications including visual acuity, auditory complications to epilepsy, we call the village card congenital syndrome. ”
Gene sequencing showed that there are two strains of the virus in Asia and Africa. In 2007, the first Asian strains were found in the Pacific island, in Brazil and other places triggered microcephaly and other nervous system diseases is the strain. However, Guinea Bissau July outbreak of Zika epidemic caused by African strains, whether caused by microcephaly risk still can make nothing of it.
What is the risk of the spread of the virus? In addition to Aedes aegypti and Aedes albopictus, other mosquito species spreading the virus? The World Health Organization also hopes that all parties to strengthen the research from many angles, understand, Zika virus strains of the virus in the body of the remaining time and location, infectious diseases and prevention methods of risk, mode of transmission, the virus may lead, and evaluate effective mosquito control tool and its feasibility.
Control of mosquitoes and self-protection is the key
Taking into account the Aedes aegypti will spread dengue fever, yellow fever, chikungunya fever and Zika virus disease, Zika virus evolution of disease under a dengue fever or yellow fever, perhaps only a matter of time.
Facts have proved that the spread of the virus is also following the spread of the path. Since 2015 4 at the end of Brazil confirmed the first case of Zika cases, this mainly through mosquito bites spread to humans of the virus has spread to America, all major countries and regions. Now, not only failed to mosquito borne disease disaster in Southeast Asia spared, the epidemic has spread to Africa, Cape Verde and guinea bissau.
Experts pointed out that, given the global nearly 70 countries and regions in the outbreak, and 80% Zika virus infection had no significant symptoms, not by monitoring the entry screening or entry found all imported cases, epidemic prevention and control through the imported case to prevent local spread with a certain degree of difficulty. Therefore, to strengthen local mosquito control efforts, take effective measures to prevent the spread of the local mosquito is the key.
Jascha Ray Vecchi said that the difference between the virus and dengue virus is a virus, the virus can be transmitted through sexual behavior to achieve interpersonal communication, people have to know this, through the use of condoms or abstinence to protect themselves. Because the Zika virus affects the development of the embryo, so pregnant women face Zika virus the most vulnerable population, awareness of risk, use mosquito repellent pesticide and safety behavior for them is very important.
Jascha Ray Vecchi said, for those who have the possibility of the spread of the virus, the possibility of transmission of the country, must always be vigilant monitoring cases, continue to control the mosquito, to popularize the knowledge of the village card, to ensure that the health care system can provide services for the prevention and management of viral infections.