Viruses can cause which types of infection?

Viruses can cause which types of infection?

• A. Bacterial infections
• B. Fungal infections
• C. Common colds and other respiratory and gastrointestinal infections
• D. Parasitic infections

Answer: (C)

Viruses cause infections by invading host cells and hijacking their machinery to reproduce, leading to illnesses that often affect the respiratory and gastrointestinal systems. The most fitting answer lists common colds and other respiratory and gastrointestinal infections, which are classic examples of viral infections caused by viruses such as rhinoviruses, influenza, norovirus, and rotavirus. The other options point to infections caused by different types of pathogens: bacteria, fungi, or parasites. Viruses don’t cause those kinds of infections directly (though sometimes a viral illness can set the stage for a secondary bacterial infection).

Viruses cause infections by invading host cells and hijacking their machinery to reproduce, leading to illnesses that often affect the respiratory and gastrointestinal systems. The most fitting answer lists common colds and other respiratory and gastrointestinal infections, which are classic examples of viral infections caused by viruses such as rhinoviruses, influenza, norovirus, and rotavirus.

The other options point to infections caused by different types of pathogens: bacteria, fungi, or parasites. Viruses don’t cause those kinds of infections directly (though sometimes a viral illness can set the stage for a secondary bacterial infection).