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An investor checks the electronic board at a stock exchange in Shanghai. [Photo/VCG]
An attendee looks at a bluetooth stethoscope manufactured by 3M Co during the South By Southwest Interactive Festival in Austin, Texas. [Photo/Agencies]
An exhibitor arranges roses at her stand at an expo in Nairobi, Kenya, June 5, 2014. [Photo/VCG]
An mRNA vaccine carries an mRNA sequence that is coded for a viral-specific antigen. Once delivered into target cells, the antigen will be recognized by the immune system to generate responses to the virus. Compared with traditional vaccines, the development and production cycle of an mRNA vaccine is often shorter.
An actual image used by one of the paid review sites sued by Amazon.
