Conditions
RSV in adults: symptoms, care and a video doctor visit
RSV in adults who are otherwise healthy usually feels like a cold: runny nose, cough, sneezing, fever and sometimes wheezing, and it clears on its own in a week or two. It can be serious in people 75 and older and in people with heart or lung disease. We see you by video in Puerto Rico, and visitors are welcome.
Is it an emergency? Call 911.
Is this an emergency?
This is not an emergency service. Call 911 or go to the nearest emergency room if you have:
- Shortness of breath or difficulty breathing
- Bluish or gray lips, face or skin
- Confusion or being hard to wake
- Chest pain or pressure that does not go away
- Asthma or COPD that does not improve with your inhaler
- A baby with any breathing difficulty: fast breathing, ribs pulling in, grunting or pauses in breathing
- A baby under 3 months with a temperature of 100.4 °F (38 °C) or higher
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At a glance
RSV (respiratory syncytial virus)
Common symptoms
- Runny nose
- Congestion
- Cough
- Sneezing
- Fever
- Wheezing
- Other names
- RSV · Respiratory syncytial virus
- Usual test
- Nasal swab test, when needed
- Treatment
- Rest, fluids and fever medicine; no routine antiviral
- Possible complication
- Pneumonia; worsening of asthma, COPD or heart failure
On this page(10)
What is RSV?
RSV (respiratory syncytial virus) infects the nose, throat and lungs. It spreads through droplets from coughs and sneezes, close contact, and touching your nose, eyes or mouth after touching contaminated surfaces, where the virus can live for hours. Symptoms appear 4 to 6 days after infection.
Almost every child has had it by age 2, and adults can catch it again. In a healthy adult it is usually mild. In other adults it can cause pneumonia or worsen asthma, COPD and heart failure.
How we care for RSV in adults by video
You see Dr. Diana Nieves Castro, a Puerto Rico–licensed general practice physician with several years of emergency-department experience, in English or Spanish. We evaluate, diagnose and treat: the doctor asks when your symptoms started, whether you are short of breath or wheezing, what conditions you have and what medicines you take, and watches you breathe on camera.
She tells you how to care for yourself at home and, if RSV has made your asthma or COPD worse, reviews your treatment. If appropriate, the doctor prescribes and we send your prescription to your pharmacy. If a test for RSV or another virus is needed, we give you a lab order for a lab near you. If you need a doctor’s note, it is included after your visit.
Your doctor
Dr. Diana Nieves Castro, MD
General practice physician
Several years of emergency-department experience.
Founding Executive Director of The Health Initiative.
Your visit in 3 steps
Request a visit online 24/7 — we confirm your time by email or text See how our online doctor visit works.
Request your visit.
Book a visit and choose "Doctor visit". You pay by card when you request it.
See the doctor by video.
We send you a secure video link. It works on your phone, tablet or computer.
Get your plan.
Home care, warning signs and, if appropriate, the doctor prescribes and we send your prescription to your pharmacy.
What the visit costs
A doctor visit costs US$79, the same price for every age, with no membership. You pay by card when you request the visit, and you get a full refund if the visit can’t take place. A doctor’s note is included. We do not bill insurance; the lab and the pharmacy charge separately. See all prices. The service is run by The Health Initiative, a nonprofit.
RSV symptoms in adults
According to the CDC, symptoms usually appear in stages:
- Runny nose
- Congestion
- Cough
- Sneezing
- Fever
- Wheezing
RSV vs a cold, the flu or COVID
In a healthy adult, RSV looks so much like a common cold that symptoms cannot tell them apart; only a test confirms it, and most of the time it does not change treatment. The flu usually starts suddenly, with high fever and body aches. For COVID-19, home tests are sold at pharmacies.
Treatment: the CDC does not routinely recommend an antiviral for RSV, and antibiotics do not work because it is a virus. It is treated with rest, plenty of fluids and acetaminophen or ibuprofen for fever and aches, as the label directs. Most infections clear on their own in a week or two.
Who should get seen early: people 75 and older; people 50 to 74 with heart or lung disease (asthma, COPD), a weakened immune system or other risk conditions; and anyone living in a long-term care facility.
To protect others: stay home, wear a mask around other people, wash your hands and do not share cups or utensils. You can go back to normal activities when, for at least 24 hours, you feel better and have had no fever without medicine; keep taking precautions for 5 more days.
The RSV vaccine
The CDC recommends an RSV vaccine for all adults 75 and older and for adults 50 to 74 at increased risk of severe RSV. To protect babies, there is a vaccine during pregnancy (weeks 32 to 36) or an antibody given to the baby. Vaccines and antibodies are given in person: ask your pharmacy or a vaccination center. During your visit, the doctor helps you work out whether you should get it.
RSV in babies and young children: for their safety
RSV is the most common cause of lung infections in babies and young children, and the younger the baby, the higher the risk. In young babies the only symptoms may be irritability, less activity, eating or drinking less, and pauses in breathing.
Any breathing problem in a baby is an emergency: go to the emergency room or call [911](tel:911). Also go right away if, at any age, your child’s ribs or neck skin pull in with each breath, their nostrils flare, they grunt when breathing, their lips or face look blue, they stop breathing for moments, or they breathe more than 60 times a minute (count for a full minute while the child is calm). A baby under 3 months with a temperature of 100.4 °F (38 °C) or higher also needs the ER, as does a baby who is eating or drinking much less than usual and wetting fewer diapers.
Get your child seen in person soon if a baby 6 to 12 months old breathes more than 50 times a minute, or a child 1 to 5 years old more than 40. For cough and cold in a child who is breathing comfortably, read cough in children. Patients under 21 need a parent or legal guardian on camera for the whole visit, with ID. Never give aspirin to a child.
When to go to the ER
For your safety, go to the emergency room or call 911 if you have any of these signs. See when to go to the ER.
- Shortness of breath or difficulty breathing
- Bluish or gray lips, face or skin
- Confusion or being hard to wake
- Chest pain or pressure that does not go away
- Asthma or COPD that does not improve with your inhaler
- A baby with any breathing difficulty
How we care for you
We evaluate, diagnose and treat; if needed, we give you a lab order for a lab near you.
We see adults and children of all ages. Patients under 21: a parent with patria potestad (parental authority) or a legal guardian is on camera for the whole visit and shows photo ID.
Real-time video visit. We send you a secure video link. It works on your phone, tablet or computer.
If appropriate, the doctor prescribes and we send your prescription to your pharmacy. We do not prescribe controlled substances.
You must be physically in Puerto Rico during the visit (visitors, tourists and cruise passengers are welcome).
In an emergency, call 911.
Frequently asked questions
Is RSV dangerous for adults?
How long does RSV last in adults?
Is there a medicine for RSV?
Where can I get the RSV vaccine?
About this page
Author: The Health Initiative
Medical care provided by Dr. Diana Nieves Castro, MD (PR license 24027)
Disclosure: Founding Executive Director of The Health Initiative
Published: 2026-10-02 · Updated: 2026-10-02
Sources (6)
- Respiratory syncytial virus (RSV) (MedlinePlus, NIH) (opens in a new tab) (accessed 2026-10-02)
- Symptoms and Care of RSV (CDC) (opens in a new tab) (accessed 2026-10-02)
- RSV Vaccine Guidance (CDC) (opens in a new tab) (accessed 2026-10-02)
- RSV in Infants and Young Children (CDC) (opens in a new tab) (accessed 2026-10-02)
- Signs and Symptoms of Flu: emergency warning signs (CDC) (opens in a new tab) (accessed 2026-10-02)
- Fever in under 5s, NG143 (NICE) (opens in a new tab) (accessed 2026-10-02)
