کرونا وائرس: بائیولوجیکل ہتھیار یا قدرتی آفت؟
- صاحب لڑی La Alma
- تاریخ ابتداء
جاسم محمد
محفلین
صرف اس موضوع کہہ کر بہت سخاوت سے کام لیا
اب خوفناک کیوں لگتی ہے سعد بھائی ؟ کیا موجودہ حالات یعنی کرونا وائرس
کے وبا کی وجہ سے ۔۔ ؟
یعنی
' ہم آہ بھی بھرتے ہیں تو ہوجاتے ہیں بدنام
وہ قتل بھی کرتے ہیں تو چرچا نہیں ہوتا
جاسم محمد
محفلین
فلم میں جو عام عوام کی جہالت اور بیوقوفیاں دکھائی گئی تھیں وہ اب کورونا وائرس وبا کے ساتھ سچ لگنے لگی ہیں۔
یہ تو بہت بڑا پیپر ہے سین خے بھائی ۔ اس کو پورا پڑھنے کے لیے تو عمرنوح
اور صبرایوبی درکار ہے ۔
جاسم محمد
محفلین
زاہد لطیف
محفلین
بہن۔
اوہ
معذرت
دراصل میں نے پروفائل نہیں دیکھا تھا زاہد بھائی
جاسم محمد
محفلین
اور وہ بھی ایک ایسے وقت میں جب ایک عالمی وبا کی وجہ سے آدھی دنیا اپنے گھروں میں محصور ہو۔ How ironic
جاسم محمد
محفلین
سین خے
محفلین
Pandemic science
But conspiracy theories aside, what does science say? The present scientific evidence points to the fact that the virus arose from certain bats in China that contain viruses very similar in structure to that found in Covid-19. One particular bat virus (code named RaTG13), or another virus very similar to it, was most probably the origin. It managed to make two tiny genetic tweaks to its structure that made it so lethal. The first tweak involved allowing it to bind to certain receptors (ACE2) that are present in human cells and that are particularly abundant in human lung cells. This binding is tight, almost perfect, 10 times stronger than what the earlier known SARS virus cells could do.
The second feature that the virus developed was to have a large number of protrusions on its surface that act as tiny harpoons and are able to penetrate into the human lung or other cells when they receive the right signals. The ability of the virus to jump from animals to humans coupled with these two tiny genetic changes has transformed it into a huge global threat to human survival, and it is feared that millions may die before the present storm is over.
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A third important project undertaken is the determination of the structure of the strain of coronavirus found in Pakistan. This is being done at the Jamilur Rahman Center for Genomics Research which is an integral part of the Dr Panjwani Center for Molecular Medicine and Drug Research, at the International Center for Chemical and Biological Sciences at University of Karachi. It has been found that the virus has undergone mutations at nine points in its structure as compared to the virus in Wuhan. The implications of these changes are being studied.
But conspiracy theories aside, what does science say? The present scientific evidence points to the fact that the virus arose from certain bats in China that contain viruses very similar in structure to that found in Covid-19. One particular bat virus (code named RaTG13), or another virus very similar to it, was most probably the origin. It managed to make two tiny genetic tweaks to its structure that made it so lethal. The first tweak involved allowing it to bind to certain receptors (ACE2) that are present in human cells and that are particularly abundant in human lung cells. This binding is tight, almost perfect, 10 times stronger than what the earlier known SARS virus cells could do.
The second feature that the virus developed was to have a large number of protrusions on its surface that act as tiny harpoons and are able to penetrate into the human lung or other cells when they receive the right signals. The ability of the virus to jump from animals to humans coupled with these two tiny genetic changes has transformed it into a huge global threat to human survival, and it is feared that millions may die before the present storm is over.
...........
A third important project undertaken is the determination of the structure of the strain of coronavirus found in Pakistan. This is being done at the Jamilur Rahman Center for Genomics Research which is an integral part of the Dr Panjwani Center for Molecular Medicine and Drug Research, at the International Center for Chemical and Biological Sciences at University of Karachi. It has been found that the virus has undergone mutations at nine points in its structure as compared to the virus in Wuhan. The implications of these changes are being studied.