A Second Wave of Covid-19 Infections Is Expected: Johns Hopkins’ Farley

The transcript discusses the stages of vaccine development, focusing on safety and immune response in phase one studies. It highlights concerns about secondary virus outbreaks and the role of antibodies in immunity. The potential impact of rolling back social distancing too quickly is examined, along with the complications of co-occurring respiratory viruses like flu and coronavirus. The expectation of a second wave of infections is also addressed.

What is the primary focus of phase one vaccine studies?

• Determining the cost of production

• Testing the efficacy of the vaccine

• Assessing the safety and immune response

• Evaluating the distribution logistics

What percentage of the population is estimated to be immunologically naive?

• 5%

• 50%

• 95%

• 100%

What is a potential risk of lifting social distancing measures too quickly?

• Improved public health

• Propagation of the virus in the community

• A decrease in virus transmission

• Increased economic growth

What complicates the diagnosis of respiratory symptoms during the cold and flu season?

• Lack of medical facilities

• Co-occurrence of flu and coronavirus

• Shortage of healthcare professionals

• Increased vaccination rates

What is expected to happen during the fall regarding coronavirus infections?

• A decrease in virus transmission

• No change in infection rates

• A second wave of infections

• A complete eradication of the virus