“Is there something going around?” is commonly asked in doctor’s offices and among parents of sick kids. The short answer is “Yes!” When it comes to children’s health, viruses are an ever-present, inevitable part of growing up, helping to build a strong immune system. Viruses thrive under a variety of conditions, which is why some illnesses spike during specific times of the year. While most viruses are mild and self-limiting, understanding which viruses are common and when they tend to circulate can help parents prepare, prevent, and respond effectively.

Fall & Winter

Influenza A/B (Flu) – This respiratory illness usually peaks between December and February. Symptoms may include fever, cough, body aches, fatigue, headaches and vomiting. Annual vaccination is the best prevention for everyone over 6 months of age.

*The “stomach flu” refers to various gastrointestinal viruses that can cause fevers, vomiting and diarrhea. Sadly, there is no vaccine to protect you from these viruses.

Respiratory Syncytial Virus (RSV) – This respiratory illness is common in infants and young children and can cause cold-like symptoms in older children and adults. More serious cases can cause breathing issues which can lead to hospitalization. RSV season is typically October-March. There is a vaccine for mothers and a preventative antibody for infants that can help prevent this illness.

Common Cold (Rhinoviruses, Coronaviruses) – These viruses circulate year-round but often surge in cooler months when kids spend more time indoors. Cold viruses can produce a wide variety of symptoms including fever, sore throat, cough, runny nose, sneezing, and congestion.

Late Winter & Early Spring

Strep Throat – Strep throat is a bacterial infection caused by group A streptococcus bacteria that often presents with a sore throat, fever, abdominal pain and sometimes vomiting. Antibiotics are necessary to treat strep throat, and we recommend testing after 24 hours of symptoms to avoid false negative results.

Croup – Parainfluenza viruses are very common during this time and can cause cold symptoms and croup, especially in toddlers, leading to a barking cough and hoarse voice. Croup symptoms can worsen at night and most can be resolved with supportive care. Children who develop stridor (high-pitched wheezing sound) should be evaluated for potential treatment.

Spring & Summer

Hand, Foot, and Mouth Disease (Coxsackievirus) – Hand, Foot and Mouth Disease is more common in warmer months, and can spread quickly through daycares and schools. It is usually a mild viral illness that can cause fever, mouth sores, and rash on hands and feet or diaper area.

Bottom Line:

While seasonal viruses are a normal part of childhood, knowing the basics can help you protect your child and respond quickly if they get sick. With preventive measures and timely care, most kids recover quickly and return to their playful selves!