العربية نت. Explainer: Are Chinese COVID

The cities also required those travelling out of the province to show proof of negative COVID-19 test results	Guangzhou, Shenzhen and Dongguan quickly sealed off neighborhoods where those who were infected and their contacts visited and launched multiple rounds of mass testing, following the protocols observed during previous outbreaks
No new domestic transmissions of any variant have been reported in the province from June 22	China has not provided vaccine effectiveness results against the variant based on large-scale data in clinical trials or real-world use, nor offered detailed information from lab tests, but Chinese experts are urging people to get inoculated as soon as possible

اللغة الإنجليزية: Residents get tested for the coronavirus in a district in Guangzhou in southern China's Guangdong province on May 30, 2021
اللغة الإنجليزية: Antibodies triggered by two Chinese vaccines are less effective against the Delta compared with other variants, Feng Zijian, former deputy director at the Chinese Center for Disease Control and Prevention, told state media last week
اللغة الإنجليزية: Guangdong, which has 126 million people, has fast-tracked its vaccination effort since the outbreak

	12 million by June 20
File Photo: Reuters How do they compare with western shots? It is based on analysis of infections in Guangzhou city, and Zhong told Reuters the results are preliminary and the sample size is small	A health worker prepares a dose of Sinovac's CoronaVac coronavirus disease COVID-19 vaccine, during a mass vaccination program in Apodaca, on the outskirts of Monterrey, Mexico May 25, 2021

Many countries from China to Indonesia and Brazil rely heavily on Chinese vaccines to inoculate their people against COVID-19, but there are growing concerns about whether they provide enough protection against , first identified in India.

اللغة الإنجليزية: He said a booster shot following the two dose-based regimen could quickly elicit stronger and more durable antibody reaction against the Delta
Explainer: Are Chinese COVID
Explainer: Are Chinese COVID: Sinovac spokesman Liu Peicheng told Reuters preliminary results based on blood samples from those vaccinated with its shot showed a three-fold reduction in neutralizing effect against the Delta

Al-Jazeera Learning Arabic site is a free open educational source that presents the Arabic language in an easy interactive way that helps learners practice and improve their Arabic language	infectious disease experts are weighing the need for booster shots using mRNA vaccines
Two doses of the AstraZeneca vaccine were 60 percent effective against symptomatic disease from the Delta compared with 66 percent effectiveness against the Alpha, PHE said	Zhong, the epidemiologist, said that without effective control measures 7

AP What China has done? A study by Public Health England PHE found in May the against symptomatic disease from the Delta two weeks after the second dose.

اللغة الإنجليزية: 15 million doses as of May 19, but the number shot up to 101
اللغة الإنجليزية: It had administered just 39
اللغة الإنجليزية: The site offers a variety of materials in different forms including: - Articles from the media - Articles of the language of communication in daily life - Authentic literary texts - Grammatical rules as well as other linguistic knowledge