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. The scientific community still has a significant cognitive gap and no effective vaccine. The control of mosquitoes and self-protection is still a powerful weapon against the village card.
Regional proliferation intensified
&ldquo: &rdquo is a mosquito invasion, and I'm afraid it's not enough to explain the complexity 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 became the newest areas and countries affected by the virus. Especially in Singapore, the number of locally transmitted cases has risen from 0 to 275 in more than 1 weeks. It is alarming that Indonesia, Thailand, Philippines and Vietnam in Southeast Asia have reported evidence of mosquito borne local transmission 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 “ ” &rdquo virus; local transmission; walled card virus is rapidly from “ unexpected ” converted to “ routine event;. Who spokesman Tariq ·, sub Shah Ray Vecchi told Xinhua News Agency reporters: "“ who expects the virus will continue to spread, and will affect all the countries and regions found Aedes aegypti.". ”
Significant cognitive gap
For the first time in 1947, scientists discovered a virus in Uganda monkeys in the jungles of Ganges RIver. Nearly 70 years have passed, and despite the fact that many cases of human infection have been detected in Africa and Asia, the scientific community still has a serious lack of understanding of the risks and modes of transmission.
Since last year, after the escalation of the epidemic in Brazil, the scientific community first tried to determine the relationship between the virus and the small head disease, Green Barre syndrome and other nervous system diseases. Who's latest presentation is that infection during pregnancy is one of the causes of congenital brain abnormalities (such as small head syndrome), and that infection with the virus is also a factor in the Green Barre syndrome.
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. ”
DNA sequencing showed that there were two strains of Asian and African viruses. The strain of the Asian strain was first discovered in the Pacific island in 2007, causing such a strain in small Brazil and other neurological disorders. However, the outbreak of the outbreak of Guinea Bissau in Guinea Bissau by the African strain in July is not yet known whether the risk of developing head disease is unknown.
What is the risk of sexually transmitted virus? Are other mosquito species transmitting viruses other than Aedes aegypti and Aedes albopictus? 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.
Mosquito control and self-protection are 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 this path. The virus, which has been transmitted mainly to humans through mosquito bites, has spread to all the major countries and regions of the Americas since the first case was confirmed in Brazil in late 4 2015. Today, not only mosquito borne diseases, Southeast Asia, the hardest hit areas have not been spared, the epidemic has also spread to Africa's 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, "Zhai card virus and dengue virus is a difference is that the" walled card virus "can be sexually transmitted through sexual activities, the public must know this pointProtect yourself by using condoms or abstinence. As the virus affects the developing embryo, the pregnant women are the most vulnerable to the virus, and it is important for them to know the risks and use the repellent and safe sex.
Jascha Ray Vecchi said, for those who have the potential for the spread of cards virus countries, we must always be vigilant monitoring cases, continue to control mosquitoes, to popularize knowledge of village cardsTo ensure that the health care system provides services for the prevention and management of viral infections.