The natural instinct of many adults is to kiss the new baby of a friend or relative. Yet many are unaware of how potentially dangerous kissing an infant baby can be. Indeed, in the worst scenarios, the child could be permanently damaged or even lose their life. As many adults are simply unaware of such dangers, today’s article exposes the risks that a simple kiss can represent to a newborn or infant baby and why it’s essential for parents to take precautions to protect them.

“A nationwide survey of 2,300 new and expectant parents … found that 54% would let friends and family kiss their newborn baby, unaware of the risk of serious infection.” — The Lullaby Trust^∞

Babies Have Immature Immune Systems & Are More at Risk

Immune systems are complex things and, despite babies being passed a level of protection via their mother’s milk, it can take some time before babies’ immune systems are advanced enough to fight off infections that an older child is naturally protected against. In the first few months of a newborn baby’s life, they have immature immune systems and therefore they are far more susceptible to infections than older children and adults. What’s more worrying, though, is that being exposed to certain viruses and microbes can cause irreparable harm to them — and even death.

“Even infections that cause mild symptoms such as a common cold in adults and older children can be life-threatening for babies” — The Lullaby Trust

The ‘Blood-Brain Barrier’

Without getting too technical, the Blood-Brain Barrier (‘BBB’) can be thought of as a thick, semipermeable membrane of special cells that protect the brain. In tandem with allowing oxygen and nutrients to be delivered from the bloodstream to the brain, it helps to retain good things inside it. Importantly, the BBB also helps to keep out germs, diseases, toxic substances, and other potentially damaging impurities from entry into the brain.

The ‘Blood-Brain Barrier’ Takes Months to Mature

Here’s the important thing in respect to babies: in newborn and infant babies, the blood-brain barrier is not fully developed and their immune systems are still being trained. And, although born with a blood-brain barrier, that barrier needs further time to develop as it continues to tighten, thereby protecting the brain more during a child’s early life. That’s incredibly important to grasp because infections in the brain can be potentially catastrophic and especially so for babies under the age of 4 months.

An infection that could cause mild symptoms in older children and adults could be life-threatening for newborns.

What’s the Worst That Can Happen to Compromised Babies?

A baby whose brain is compromised by an infection crossing an immature blood-brain barrier can suffer potentially catastrophic consequences. A brain infection can lead to brain inflammation, brain swelling, brain damage, loss of consciousness, stroke, seizures, epilepsy, and potentially even death. It’s critically important, therefore, to protect children from such potential risks, especially in their first few months and during their first year.

“The younger the baby, the more vulnerable they are to the harmful effects of infection.” — NHS

The Risks from Kissing Babies

So, what has all this got to do with kissing babies? Well, because the BBB in babies and young infants is immature, the risks of infection to the brain are far higher. General germs, viruses and colds are, of course, a concern along with illnesses that cause ill health, diarrhoea or vomiting. However, active cold sores are a particular worry to parents who are aware of the safety issues around kissing babies. That’s because the virus that causes cold sores is actually the herpes simplex^∞ virus, which can be passed to the baby through a simple kiss on the head. It’s a very common virus and, indeed, most adults carry the HSV-1 variant of the virus but don’t realise they do. For adults, it causes cold sores but can also cause genital herpes (HSV-2).

“The herpes simplex virus can be passed to a baby through a cold sore if a person has a cold sore and kisses the baby.” — NHS

If infected by neonatal herpes^∞, a baby could become seriously ill or even die, particularly if the infection spreads to the infant’s internal organs. This is therefore a serious issue that parents need to be aware of and take measures against. And it’s all the more important in the earliest part of a baby’s life due to the immaturity of their immune system and BBB.

“A baby is most at risk of getting a herpes infection in the first 4 weeks after birth.” — NHS

Cold sore infections are most contagious when the blisters they cause burst, and remain a danger until fully healed. Therefore it’s important never to let anyone with such a condition touch or kiss a baby.

“Despite the risk, 63% of new and expectant parents would feel uneasy asking visitors not to touch their baby, worried that they’d offend someone, hurt their feelings, or be labelled an overprotective parent.” — NHS

Telling family and friends why you don’t want them to touch or kiss a baby can feel awkward. However, the risks are huge to babies, so such requests are essential. In view of this, The Lullaby Trust has produced the following video, which can be shared by parents to make communication about this issue less difficult:

With the right approach, it’s possible for friends and family to meet your new baby while taking steps to help prevent infection.

Weekday Childcare for Babies & Under-5s in Streatham

Little Cedars is a wonderful nursery and preschool in Streatham. We’re recognised as a ‘good provider’ of childcare and early years education by Ofsted and, as such, give babies and children under five a fabulous start in life. What’s more, we also support a wide range of free childcare options for eligible children through several of the Government’s childcare funding schemes. So, do consider us if you are looking for a high-quality weekday childcare service in Streatham or live in nearby locations like Streatham Common, Streatham Hill, Streatham Park, Tooting Common, Tooting, Tooting Broadway, Furzedown, Balham, Norbury or Colliers Wood.

Consider a childcare place at Little Cedars Nursery in Streatham today. Choose an option to get started: