With influenza on the rise in the US, a CHOC knowledgeable gives an summary of the virus, the circumstances it causes and when mother and father ought to fear.
On this Q&A, Dr. Antonio Arrieta, an infectious illness specialist at CHOC, solutions some frequent questions mother and father have about influenza B.
What’s influenza B?
Influenza, generally referred to as the flu, is a extremely contagious respiratory sickness attributable to influenza viruses. Its severity can differ from delicate to extreme, and in some instances, can result in severe problems like pneumonia, bronchitis, or worsening of power circumstances akin to bronchial asthma or coronary heart illness. Not often it might end in life threatening problems akin to encephalitis (irritation of the mind), respiratory failure requiring assisted air flow and sometimes loss of life.
What’s the distinction between the flu and the chilly?
Each the flu and the frequent chilly are contagious respiratory sicknesses, however totally different viruses trigger them. Flu is attributable to influenza viruses solely, whereas the frequent chilly may be triggered by quite a lot of viruses, together with rhinoviruses, parainfluenza, and seasonal coronaviruses.

What are the signs of influenza B?
Signs of Influenza B might embody:
- fever
- physique aches
- chills
- headache
- runny or stuffy nostril
- gastrointestinal points in just a few instances like nausea and diarrhea
- typically, muscle ache may be extreme and will require hospitalization
How will you assist forestall influenza B?
Stopping and managing influenza B may be supported by way of vaccination, good hygiene practices, and antiviral medicines. It’s vital for everybody in your loved ones to get their flu shot yearly.
The Facilities for Illness Management and Prevention (CDC) recommends that everybody aged 6 months and older obtain their annual flu vaccination by late October, ideally earlier than the beginning of flu season.
Nonetheless, when you haven’t acquired your flu shot but, it’s not too late! The vaccine remains to be extremely really useful for anybody who hasn’t been vaccinated. Not solely does it assist defend you from the flu, nevertheless it considerably lowers the chance of extreme problems, akin to hospitalizations and even loss of life.
The flu shot doesn’t trigger the flu and helps maintain children and fogeys from getting sick. Infants youthful than 6 months can’t get the vaccine. But when their mother and father, different caregivers, and older children within the family get it, that may assist defend the child.
How is influenza B transmitted?
Influenza spreads by way of respiratory droplets when an contaminated individual coughs, sneezes, and even talks. It’s common for individuals to cowl their mouths once they cough, however they need to then wash their arms as our arms are a typical approach to contaminate surfaces or to cross the virus to others by way of a pleasant handshake.
What’s the remedy for influenza B?
Therapy for Influenza B primarily focuses on easing signs whereas the physique fights off the virus. Antiviral medicines might help shorten the period and scale back the severity of signs. Antiviral treatment ought to be strongly thought-about when influenza (A or B) is recognized or when somebody is searching for medical consideration for influenza like sickness (ILI). That is of higher significance in youngsters and different individuals with underlying illnesses which or require therapies that weaken the immune system or with power respiratory sickness like bronchial asthma.
How contagious is influenza B?
Influenza B is extremely contagious and might unfold by way of respiratory droplets when an contaminated individual coughs or sneezes.
Folks with the flu may be contagious about sooner or later earlier than signs begin and as much as 5 to seven days after they start to really feel sick. Nonetheless, younger youngsters might stay contagious for an extended interval than adults. People with weakened immune programs may be contagious for a number of weeks.
Is influenza B bacterial or viral?
Influenza B is a extremely contagious viral an infection that spreads by way of the air.
How does influenza B have an effect on the physique?
Influenza B primarily targets the respiratory system, inflicting discomfort all through the physique. The virus primarily infects the nostril, throat, and typically the lungs, resulting in signs like cough, congestion, and a sore throat.
Though much less frequent in adults, youngsters may expertise gastrointestinal signs akin to nausea, vomiting, and diarrhea, alongside the everyday respiratory signs. Extreme muscle ache is frequent in sufferers with influenza B.
keep away from spreading the flu?
- Keep away from shut contact with others till you’ve got been fever-free for no less than 24 hours with out utilizing fever-reducing medicines.
- Be sure you clear and disinfect incessantly touched surfaces like doorknobs, counter tops, and lightweight switches.
- Cowl your nostril and mouth when sneezing and wash your arms with cleaning soap and water or use hand sanitizer recurrently.
When must you search medical recommendation for the flu?
Take into account searching for medical consideration you probably have ILI, as antiviral treatment could also be useful. You need to search medical consideration in case your signs persist for greater than 5 days or when you’re feeling worse or not bettering after 2 – 3 days. In case you develop new fever, chest ache or issue respiration inside 1 – 3 weeks after influenza or ILI. You need to search medical consideration since severe bacterial infections typically observe uncomplicated influenza.
Why do individuals want a flu vaccine yearly?
Even when you acquired the flu vaccine final yr, it might not supply sufficient safety this yr because of modifications within the flu viruses. That’s why the flu vaccine is up to date yearly to incorporate essentially the most present strains of the virus.
Generally, the identical strains from one yr are included within the subsequent, nevertheless it’s nonetheless vital to get the flu vaccine annually. Over time, the physique’s immunity in opposition to the influenza virus weakens, so common vaccination is crucial.
Getting the flu vaccine not solely protects you but in addition helps safeguard these round you. It reduces your probabilities of getting the flu and, consequently, lowers the chance of spreading it to others.
How will you get better from the flu?
To help your restoration, ensure you get loads of relaxation, keep hydrated, and take over-the-counter medicines like acetaminophen to assist handle signs.
Don’t use medicines like ibuprofen, except instructed by a well being care supplier. Don’t take aspirin when you’ve got influenza or ILI, notably you probably have influenza B.
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