Meanwhile, the CDC has issued an alert to clinicians about the need to increase immunizations for influenza, Covid-19, and respiratory syncytial virus, or RSV. The public health agency reported Heard of the triple threat this winter? COVID-19, the flu and respiratory syncytial virus (RSV) are together driving a wave of respiratory illnesses. But all three have very similar symptoms that overlap. We help you zero in on which virus you might have. Wait, what's RSV again? What is the difference between the flu, COVID-19, and RSV? The flu, COVID-19, and respiratory syncytial virus (RSV) are all highly contagious respiratory infections caused by viruses : The flu by influenza virus, COVID-19 by SARS-CoV-2 virus, and RSV by respiratory syncytial virus. Español. You may be eligible for three vaccinations this fall - flu, COVID-19, and RSV (respiratory syncytial virus) - and wondering if you should get all three shots. The only way to know for sure if you have COVID, RSV, or the flu is to get tested for COVID, RSV, and the flu. But your symptoms can give you a clue about whether you have COVID, RSV, or the flu. Flu symptoms tend to start all of a sudden, while COVID and RSV symptoms come on more gradually. by Eunice Wallace Learn how to tell the difference between the illnesses, and the most important thing parents can do to keep children safe. September usually marks the start of flu season, and with the ongoing threat of COVID-19, it's crucial to be vigilant about your family's health. How is RSV different than the flu? RSV and the flu are two different viruses, but often have very similar symptoms. Sometimes, the symptoms are no more severe than that of a common cold. Other times, they can be life threatening. Common symptoms of RSV: Fever, but not always; Loss of appetite; Cough, often with wheeze. The cough can sound Flu viruses are a totally different story. "The special characteristic of flus is the abrupt onset of symptoms," Chin-Hong said. "You might be minding your own business, feeling OK, and then Posted on October 11, 2023. It can be confusing to tell the difference between the flu, the common cold, and RSV (Respiratory Syncytial Virus). These illnesses share certain symptoms, but understanding their differences is crucial for effective prevention and management. Key Differences Between Flu vs. COVID vs. RSV What's the Difference Between the Flu, COVID-19, and RSV? Symptoms Diagnosis Treatment Influenza (flu), COVID-19, and U5dK.