Suzanne Berman, M.D.
I
would give up a year's salary if I had a safe and effective
vaccine against RSV!
What
is RSV?
RSV
(respiratory syncytial virus) is a very
common winter cold virus. Adults and children who get it tend to
have a cough, stuffy nose, and sore throat - indistinguishable
from most other winter colds. However, they can pass it to
infants and young toddlers, and the result can be severe. It is
very contagious and is spread by coughing and sneezing. Young infants usually get it from their parents, older brothers or sisters, or older playmates at daycare - who may seem to have just a cold or sometimes have no symptoms at all.
What
is bronchiolitis?
Babies
with RSV usually just get very bad colds, with horribly runny
noses. In fact, babies can make so much nasal mucus that they can
choke or gag on it. Unfortunately, they can also get
"bronchiolitis" - inflammation of the small airways deep in a baby's lungs. Bronchiolitis
causes severe coughing, fast shallow breathing, and wheezing.
Occasionally it can be so severe that babies end up in the hospital.
What
can I do for my child's RSV infection?
Begin
by doing exactly what you would do for any bad cold in a baby:
- Encourage lots of liquids. Fluids help keep a child well
hydrated, which keeps the mucus loose. The baby may not
feel like drinking as much as usual, so offer feedings
twice as frequently as usual. Breast milk, formula, juice, or water are fine for older infants (more than 6 months). Younger infants should get only breast milk or formula unless otherwise instructed.
- Keep the nose cleaned out with nasal saline drops and a
suction bulb. RSV infections in babies cause an
incredible amount of mucus. Nasal saline drops moisten
hard, dry mucus; the bulb helps suck out the mucus in a
baby too young to blow his or her nose. You may have to
do this several times an hour for a while - think
how much you have to blow your nose when you're sick. See
our information sheet on how to use a nasal bulb suction.
- Run a cool mist humidifier in the baby's room. Just like nose drops loosen the mucus in the nose, the humid air will loosen the mucus in the baby's lungs, allowing her to cough up the mucus.
- Elevate the head of the baby's crib with blocks or books. This will help the baby's mucus drain out the nose, not drip down the throat where it causes coughing and choking.
- Don't let anyone smoke in the house or in the car with
the baby. Don't let anyone hold the baby after smoking
unless they have washed their hands and changed their
clothes. Smoke always makes wheezing worse.
What
can I do for my baby's bronchiolitis?
If
your child's RSV infection progresses to bronchiolitis, you will
want us to check him in the office. In addition to doing the
above things, you will want to watch your baby's breathing very
closely:
- How fast is your baby breathing? You can count the
number of times your child breathes in a minute.
Normally, healthy infants breathe about 30-35 times a
minute. Infants with bronchiolitis breathe 45-80 times a
minute. If your baby breathes more than 60 times a
minute, he probably needs to be put in the hospital
(babies breathing this fast usually can't eat or drink.)
- How hard is your baby breathing? Watch your baby's
chest rise and fall. If it rises and falls gently, your
baby is in good shape. If the baby is pumping his belly
in and out quickly, and his ribs are spreading and
contracting wildly, that is a sign that the baby is
gutting worse.
- Is the baby wheezing? This is different than
simply noisy or congested breathing. True wheezing occurs
when the baby exhales. Ask us to demonstrate for you the difference
between noisy breathing and wheezing.
- Is the baby getting enough to eat and drink? If
the baby has been taking a bottle, keeping it down, and wetting his/her diaper every 4-6 hours,
that is a good sign that his breathing isn't severe
enough to keep him from eating. However, if the baby
can't or won't eat because of breathing or coughing, he
needs to be seen.
If
you think your baby's breathing is getting worse, have him or her
checked out right away. It is very common to have ill babies come
back to the office three or four days in a row for rechecks, to
keep them out of the hospital.
Are
there any medications that help RSV?
Unfortunately,
there is no single medication that works well for
RSV. The following are some medications that have been used to treat RSV infections:
- Breathing treatments. Albuterol is an
inhaled medication that relaxes tight airways. Although albuterol has been used for years in babies with RSV, recent studies are challenging this practice. The latest information shows that albuterol rarely helps otherwise healthy babies with RSV. Rarely, we might recommend albuterol breathing treatments for your baby. If someone else suggests albuterol for your baby but we haven't recommended it, please let us give you more information on your baby's specific case.
- Antibiotics. RSV is a virus, and
antibiotics never help viruses. However, babies with RSV
are at higher risk to get bacterial infections (like ear
infections), for which
we will recommend antibiotics.
- Over the counter medications.
Most over-the-counter cough & cold remedies won't
help in these young babies. In fact, we don't recommend cough suppressants in RSV because the baby needs to cough up the mucus to get better. Acetaminophen (Tylenol®) may be used for fever above 101,
if the baby appears uncomfortable. - Oxygen. Babies who are not getting enough oxygen because of their illness can get inhaled oxygen in the hospital.
- IV fluids. Babies who are getting dehydrated because of their illness can get IV fluids in the hospital.
- Other medications. For many years, doctors prescribed other medications such as steroids and antivirals (like ribavirin) for RSV. We know now to avoid them, since studies have shown they don't help, and can have undesirable side effects.
How
long does an RSV infection last?
Most
bad colds last 7-10 days. RSV can hang on longer; in some bad
cases, cough and congestion can last two weeks or more. A recent
study done in South Africa showed that 10% of babies with
bronchiolitis were still having some symptoms a month after
infection! After a week, though, a baby should be getting a
little better every day. If not, we should see your baby in the
office to make sure there are no complications, like pneumonia or
an ear infection.
If
you get RSV once, can you get it again?
Unfortunately,
yes. RSV is similar to influenza - you can get it more than once.
The good news is that the first infection is the worst, and
subsequent infections are milder.
What
is Synagis?
Synagis
is a injection given monthly during the winter to prevent RSV
infection in infants who are at high risk for RSV. It's not a vaccine, so it doesn't give permanent
immunity. It works well, but the cost is so high ($6000 for the
series of injections) that insurance companies will only approve
the shots for babies with special problems, like prematurity,
heart defects, bad lungs, etc. We will let you know if your baby
is a candidate for Synagis.