The Delta variant is becoming the dominant strain of COVID-19

The video discusses the dangers of coronavirus variants, focusing on their high transmissibility, severity, and ability to evade vaccines. It highlights mutations in spike proteins that affect virus transmissibility and replication. The Delta variant is noted to be more transmissible than the Alpha variant, with vaccines like Pfizer and AstraZeneca showing high efficacy against hospitalization. However, the Delta variant may cause different symptoms, such as headaches and runny noses, which could lead to underdiagnosis.

What makes the coronavirus variant particularly dangerous according to experts?

• Its origin from multiple countries

• Its ability to cause immediate symptoms

• Its high transmissibility and vaccine escape

• Its resistance to all known treatments

Where is the mutation that affects the virus's ability to replicate located?

• In the furin cleavage site

• In the virus's core

• In the virus's outer shell

• In the human immune system

How much more transmissible is the Delta variant compared to the Alpha variant?

• 20% more transmissible

• 60% more transmissible

• 40% more transmissible

• 80% more transmissible

What is the efficacy of the Pfizer BioNTech vaccine against hospitalization from the Delta variant after two doses?

• 92% effective

• 86% effective

• 96% effective

• 100% effective

Which symptoms are more commonly associated with the Delta variant?

• Sore throat and fatigue

• Fever and chills

• Coughing and loss of smell

• Headaches and runny noses