How to Tell These Viruses Apart: COVID, Flu, and RSV

The flu, COVID-19, and respiratory syncytial virus (RSV) are three pulmonary viruses that are now spreading rapidly. Although most healthy individuals exhibit comparable symptoms, these infections can have a more severe effect on vulnerable groups. 

Additionally, knowing what virus you have might help you get the right therapy overall. However, there is no foolproof technique to distinguish between these infections. Yet, several telltale indicators might help you figure out the nature of the situation. 

Here, professionals discuss symptoms to watch out for to identify which virus you have.

1. RSV Strikes Immunocompromised Individuals and Children

RSV is almost universally acquired by the age of 2. Therefore, compared to other groups, there is a larger likelihood that unwell babies and young children have RSV infection. 

Although signs of RSV like a stuffy nose or a slight temperature alone are not enough to warrant a visit to the physician, breathing difficulties are. 

If your child does not exhibit such symptoms, you should probably simply call your doctor regarding viral management rather than taking them to the doctor.

Additionally, individuals with certain immunocompromised diseases, especially seniors with chronic obstructive lung disease, are susceptible to developing severe RSV.

2. RSV Is Not Linked to Digestive Problems

The likelihood of having digestive problems is low if you have RSV. The COVID-19 infection, which can result in vomiting and diarrhea, is known to have these adverse effects. Vomiting and diarrhea are additional effects of influenza. 

However, remember that the Centers for Disease Control and Prevention (CDC) claim that children experience this condition considerably more frequently than adults do. Most individuals who get the flu won’t experience digestive problems.

3. Loss of Smell and Taste Is Typical with COVID

One method to identify COVID-19 from the flu and RSV is by a loss of taste and smell; however, this symptom is less prevalent today than it was in the early stages of the pandemic.

This differs from the absence of taste and smell caused by congestion. With a COVID-19 infection, this symptom typically occurs very early on as one of the earliest indicators of the virus, occasionally even in the absence of any other symptoms.

Even if you have COVID-19, there is no assurance that you will experience this side effect, but if you do, it is probably an indication of the virus and none of the other ones.

4. Long-Lasting Symptoms Are a Marker of COVID

In contrast to the flu and RSV, COVID seems to leave behind lasting consequences. After the infection has cleared up, this might involve mental fog or disorientation, as well as a reduction of taste and smell that would not recover for weeks. 

However, not all COVID infections will result in a protracted COVID, as was mentioned above. Flu and RSV are less likely to produce persistent symptoms, but research indicates that an RSV infection can result in persistent wheezing. 

The flu can also weaken the body’s natural defenses and trigger a chain reaction of inflammation that can lead to other illnesses, including heart attacks and strokes, notably in adults. This highlights the eminence of getting your COVID and seasonal flu vaccinations.

5. You Can Possibly Be Dealing with Two Viruses at Once

It is also common to get two illnesses at once, which is unwelcome news, particularly during periods of rapid viral propagation, like the current time. 

It is possible that you won’t get them both at once, but you could have cold and cough symptoms first, followed by a fever that is not necessarily related to the initial set of symptoms. You might be dealing with two illnesses at once. 

As the number of instances of the flu and omicron rose nationwide last winter, the word “flurona” gained popularity. A few people simultaneously carried both viruses in their bodies. Your body becomes unable to defend itself as a result of fighting off one virus.

Bottom Line

On the whole, based on a single symptom, it might be difficult to tell these viruses apart. The key thing to remember is that despite the three illnesses sharing a lot of symptoms, they are all predominantly respiratory viruses.