Understanding Viruses and Spillover

What is the primary focus of zoonotic diseases?

• Infecting humans

• Infecting plants

• Infecting fungi

• Infecting bacteria

What is the role of receptors in viral infections?

• They are part of the virus structure

• They destroy viruses

• They help viruses bind to host cells

• They produce antibodies

What is 'spillover' in the context of viral infections?

• A virus mutating within the same species

• A virus being destroyed by the immune system

• A virus jumping from animals to humans

• A virus infecting its original host

What increases the risk of viral spillover in farms and slaughterhouses?

• Presence of plants

• Absence of humans

• Lack of animals

• Proximity to animals

Which type of immune response is always present in the body?

• Adaptive immune response

• Cellular immune response

• Innate immune response

• Viral immune response

Why are mutations important for a virus during spillover?

• They allow the virus to replicate efficiently

• They stop the virus from binding to cells

• They make the virus less infectious

• They help the virus become visible

How do interferons help in fighting viral infections?

• They destroy the virus directly

• They stop the virus from replicating

• They help the virus bind to cells

• They mutate the virus

What is the role of T cells in the adaptive immune response?

• They mutate viruses

• They produce viruses

• They destroy infected cells

• They create new receptors

What is necessary for a virus to start a chain of transmission?

• Infecting one person

• Infecting at least two people

• Infecting only animals

• Infecting plants

What is a major challenge in predicting new zoonotic diseases?

• Unpredictable spillover conditions

• Too many vaccines

• Lack of monitoring

• Lack of viruses