Viral infections can cause various symptoms, including fever, fatigue, cough, headache, muscle aches, sore throat, runny nose, gastrointestinal issues, and shortness of breath, and the severity varies by virus and individual. Some infections may be asymptomatic, while others can lead to complications such as pneumonia or organ failure. Early detection is essential for effective treatment. The World Vaccines R&D Conference has been a platform for advancing research, promoting global collaboration, and developing vaccines for managing and preventing viral infections.