اختبار الكتروني حلول. منتديات يزيد التعليمية

This type of coronavirus is often called 2019-nCoV, novel coronavirus, or COVID-19
They are a group of viruses that cause diseases in mammals and birds In humans, coronaviruses cause respiratory tract infections that are typically mild, such as the common cold

باب ناين التعليمي لطلاب المدرسة والجامعة والتعليم الذاتي

The origin of this name "coronavirus" is derived from the Latin corona, meaning crown or halo.

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منتديات يزيد التعليمية
Unfortunately, when viruses are transmitted from animals to people, it can take scientists a lot of time before they can develop a vaccine or medicines to cure it
منتديات يزيد التعليمية
A-Corona virus causes disease in At the end of 2019, a new type of coronavirus started spreading in China
اختبار الكتروني Mega Goal 4 نهائي
The name refers to the characteristic appearance of the infective form of the virus, which is reminiscent of a crown or a solar corona
It is believed that the virus was transmitted from animals to humans Coronaviruses were discovered in the 1960s
Some of the first cases were diagnosed in people who had visited a market selling live seafood and animals

باب ناين التعليمي لطلاب المدرسة والجامعة والتعليم الذاتي

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