
Likely viral causes
Viral causes refer to illnesses caused by viruses, tiny infectious agents that invade our cells to multiply. Common viruses include influenza, common cold viruses, herpes simplex, and COVID-19. They spread through contact with respiratory droplets, contaminated surfaces, or bodily fluids. Viruses trigger immune responses, leading to symptoms like fever, cough, or fatigue. Since viruses are different from bacteria, they typically require specific antiviral treatments or supportive care, like rest and fluids. Preventive measures include vaccination, good hygiene, and avoiding close contact with infected individuals to reduce the risk of infection.