New COVID-19 Wave in Singapore: What Parents Need to Know About JN.1

Singapore is currently facing a fresh wave of COVID-19 cases, with a 28% increase reported in early May 2025. At the heart of this resurgence are the LF.7 and NB.1.8 variants, both descendants of JN.1, a highly transmissible strain that is quickly becoming dominant in the region. For parents, this new development brings renewed concerns about family safety, child health, and the return of precautionary measures. Here’s what you need to know to navigate this evolving health situation confidently.

Current COVID-19 Situation in Singapore

COVID-19 cases have seen a sharp rise in recent weeks, prompting health officials to advise increased caution and preventive action across the country.

Rising Case Numbers

From April 27 to May 3, 2025, weekly case numbers climbed from 11,100 to 14,200—a 28% jump. Hospital admissions also increased to 133 per day, up from 102. These figures signal a renewed need for vigilance as schools, public transport, and workplaces become high-contact zones again.

Health Authorities’ Response

The Ministry of Health (MOH) continues to promote vaccination and responsible public behaviour. Citizens are urged to remain updated with their booster shots, avoid crowded places if unwell, and test promptly if symptoms develop.

Understanding the JN.1 Variant and Its Descendants

The recent surge in COVID-19 cases in Singapore is attributed to the LF.7 and NB.1.8 variants, both descendants of the JN.1 variant.

What Are LF.7 and NB.1.8?

LF.7 and NB.1.8 are subvariants of the Omicron family, specifically descending from JN.1. These variants currently account for over two-thirds of COVID-19 cases in Singapore, becoming the dominant strains due to their enhanced ability to spread rapidly from person to person.

Are They More Severe?

Although these variants are more contagious than previous strains, available data suggests that they do not result in more severe symptoms or complications. However, the increased transmission rates mean more people could fall ill at the same time, leading to higher hospitalisation rates.

Covid-19 Symptoms to Watch For in Children

As parents, being alert to the signs of illness in your child is essential. The symptoms associated with LF.7 and NB.1.8 may overlap with common flu or cold, but early identification helps prevent wider spread.

Common Symptoms

Children infected with these variants often exhibit symptoms such as:

Cough
Sore throat
Runny or blocked nose
Fatigue
Headache
Nausea or vomiting
Eye redness (conjunctivitis)

When to Seek Help

Most children experience mild symptoms, but consult your paediatrician if your child has underlying conditions or if symptoms worsen over time.

Precautionary COVID-19 Measures Every Family Should Take

Prevention remains the strongest defence against COVID-19. Parents play a key role in setting health-conscious habits at home.

Get Vaccinated and Boosted

Ensure all eligible family members, including children, have received their COVID-19 vaccinations and booster shots. This boosts immunity and reduces the risk of severe outcomes.

Reinforce Hygiene Habits

Teach and practice good hygiene daily. Encourage children to wash their hands before meals and after using the toilet, and sanitize high-touch surfaces frequently.

Use Masks and Ventilation

Although not mandatory, wearing masks in enclosed public spaces is highly recommended. Keep windows open when possible to allow fresh air to circulate indoors.

Watch for Symptoms and Isolate Early

Early testing and responsible isolation can greatly reduce community spread. Keep ART kits at home and use them if anyone in the family feels unwell.

Parental Guidance and Communication

Supporting your child emotionally is just as important as protecting them physically. Help them feel safe, informed, and in control during this uncertain time.

Talk Openly With Your Kids

Explain the importance of safety habits in age-appropriate language. Encourage questions and acknowledge their emotions about the situation.

Manage Special Health Needs

If your child has health issues like asthma or allergies, discuss additional precautions with their healthcare provider to ensure optimal safety.

Stay Updated with Health Advisories

Singapore’s latest COVID-19 surge, driven by the LF.7 and NB.1.8 variants, serves as a reminder that the pandemic is not over. With clear information, timely action, and supportive parenting, families can navigate this period safely and calmly. Staying updated with health advisories and encouraging good practices at home are crucial in keeping our children and communities healthy.

Frequently Asked Questions (FAQs)

Is the LF.7 or NB.1.8 variant more dangerous for children?

No. While these variants spread more easily, there is no evidence to suggest they cause more severe illness in children compared to earlier strains.

Should my child get a booster shot?

Yes. Booster shots are essential to maintaining strong immunity and are recommended by the MOH for all eligible individuals, including children.

Do vaccines still work against the LF.7 and NB.1.8 variants?

Yes. Existing COVID-19 vaccines and boosters continue to offer significant protection against severe illness and hospitalisation caused by these variants, especially when kept up-to-date.

What should I do if my child shows COVID-19 symptoms?

If your child shows symptoms such as cough, sore throat, or fatigue, perform an ART test and consult your family doctor. Follow official isolation and care guidelines as advised by MOH.