Introduction

It's all too common for a child to return home from daycare with a new cold, which can be worrying for parents and caregivers. While most of the time it's not something to be overly concerned about, there are some risks associated with the types of infections that a child can contract. Therefore, it is crucial to understand the threats posed by common infections such as parainfluenza, also known as “the flu,” to ensure your child's well-being.

By understanding these threats, we can offer practical strategies to avoid them, ensuring a safer environment for child-centered care.

What is Parainfluenza?

Parainfluenza is a virus that commonly infects both the lower and upper respiratory tracts, especially those under the age of five and people with weaker immune systems. It comes in four different types, each with its own characteristics:

• HPIV-1 (Human Parainfluenza Virus 1): This type is often responsible for outbreaks of croup, a condition that causes a barking cough and difficulty breathing, especially in young children¹
• HPIV-2 (Human Parainfluenza Virus 2): Similar to HPIV-1, HPIV-2 can also lead to croup. However, it tends to be less common¹
• HPIV-3 (Human Parainfluenza Virus 3): This type is most often associated with bronchiolitis and pneumonia, particularly in infants and young children¹
• HPIV-4 (Human Parainfluenza Virus 4): This type is less well-known and less common than the other three types. It can still cause respiratory illnesses but generally leads to milder symptoms¹

Common symptoms of the virus include:¹

• Fever
• Runny nose
• Cough

How does the virus spread?

The parainfluenza virus is extremely contagious as it can quickly spread through the air when an infected person breathes, sneezes, or coughs. The virus can also remain on surfaces for up to 10 hours, making it extremely difficult to avoid when in close proximity to someone with the virus.¹

Daycare environment and parainfluenza risk

Due to the high density of children in daycares, it is even more likely for the virus to spread when one child is infected. There is frequent physical interaction between children and the sharing of toys and surfaces where the virus may linger.² 

Specific Risk Factors in Daycare Settings

However, there is still a chance that one child is more or less likely to catch the virus. Some risk factors include:²

• Age: Studies show that younger children, aged two and younger, are more likely to develop more severe conditions when infected with parainfluenza, such as bronchitis and pneumonia. This makes them a more at-risk group, especially due to their higher susceptibility to catching the virus as their immune systems may not be as developed as those of older children in the daycare.
• Vaccination status: Another risk factor is whether the child is vaccinated for parainfluenza. If a child is not vaccinated, they are more likely to be infected and suffer more severe symptoms than their vaccinated peers. Vaccination introduces the virus to the child's immune system, allowing it to build a defense when they come into contact with the actual virus.
• Existing health conditions: The virus’s symptoms may be exacerbated in children with underlying health conditions such as chronic health issues or respiratory problems like asthma. Children with weakened immune systems are also more susceptible to severe infections and are advised to take the vaccine.
• Sick children attending daycare: However, even if your child is vaccinated and you are taking as many precautions as possible, they may still get sick. This is often due to parents who allow their children to attend daycare while knowing they are infected. This irresponsible choice can cause infections among more vulnerable children, such as those with underlying health conditions, who may not recover as quickly or fully as others.

Preventive Measures and Best Practices

Now that we’ve discussed the risk factors, let’s consider the best measures that caregivers, parents, and daycare staff can take to prevent the spread of the virus.

• Educating parents and caregivers: There should be awareness programs or meetings to ensure that everyone involved understands the severity and risk of the virus, and how it can become a serious situation for at-risk children. These programs must also encourage parents and caregivers not to send children to daycare when they are sick. Daycare staff should also be allowed to stay home when they are ill.
• Communication Between Parents: The importance of reporting illnesses cannot be overstated. Sharing information about outbreaks and preventive measures is crucial.
• Proper Hygiene Policies⁴
• Daycares must implement strict hygiene policies such as:
  • Training for staff and children on hygienic practices, such as handwashing.
  • Policies for managing virus outbreaks.
  • Routine use of effective disinfectants on shared surfaces like tables, toys, and play areas.
  • Proper ventilation to reduce airborne transmission of viruses.
• Health screening procedures: Daycares should conduct routine health checks for children and staff to identify individuals at risk. They should also check vaccination records and offer guidance to those without vaccinations.³
• Limiting visitor access: Limiting the access of visitors to daycare facilities can help reduce the introduction of new viruses. Only essential personnel and parents should be allowed, and they should follow strict hygiene protocols.
• Use of personal protective equipment (PPE): During outbreaks, the use of PPE such as masks and gloves can help reduce the spread of the virus among children and staff. Training staff on the correct use and disposal of PPE is also important.⁴
• Encouraging Outdoor Activities: Whenever possible, encouraging children to spend time outdoors can reduce the risk of airborne transmission. Outdoor play and activities should be incorporated into the daily schedule.
• Creating isolation areas: Designating an area where sick children can be isolated until they are picked up by their parents can help prevent the spread of infections. This area should be regularly cleaned and disinfected.³

Summary

Understanding the risks and preventive measures associated with parainfluenza is essential for ensuring the health and well-being of children in daycare settings. By educating parents and caregivers, maintaining open communication, and implementing strict hygiene and health screening policies, we can significantly reduce the spread of this highly contagious virus. Ensuring that children are vaccinated and that sick children stay home are crucial steps in creating a safer environment for everyone.

FAQS

How long does a parainfluenza infection last? 

Parainfluenza symptoms typically persist for 7 to 10 days.² If symptoms last longer or worsen, it is important to seek professional medical assistance.

How can parents boost their child’s immune system to help prevent parainfluenza? 

Parents can boost their child's immune system by ensuring they eat a balanced diet rich in fruits and vegetables, get regular exercise, maintain a regular sleep schedule, and practice good hygiene habits, such as regular handwashing.²

Is there a specific season when parainfluenza is more common? 

Parainfluenza infections can occur year-round, but they tend to be more common in the autumn and spring.²