NHS warns two groups not to get the flu jab as vaccine season starts

The NHS flu vaccination programme is up and running, with all eligible people now able to make appointments. However, there are two groups who may need to exercise caution or avoid getting the jab altogether, reports Yorkshire Live.

The first group who should not get the vaccine, according to official guidance, is anyone feeling poorly or running a high temperature.

They should hold off getting their jab until they feel better. The vaccine can impact your immune system, so if your body is already battling an illness it may struggle to respond properly.

NHS flu jabs remain available until March 31, 2026, and while receiving it earlier can shield you during flu season's peak, those already unwell may be better off waiting until they recover. Further details can be found on the NHS website.

The second group who may want to avoid getting the flu jab is those who have experienced allergic reactions to previous flu vaccines or to vaccine components. The guidance explains: "Most people who are eligible for the flu vaccine can have it.

"You only cannot have the vaccine if you've had a serious allergic reaction to a previous dose of the vaccine or an ingredient in the vaccine. Some of the flu vaccines used in the UK contain egg protein.

"Tell the person vaccinating you if you have an egg allergy." Several types of flu vaccines are administered in the UK, depending on your age group.

The ingredients lists are available for all vaccines on the NHS website.

These people are eligible for the free flu vaccine:

• Those aged 65 or over by March 31, 2026
• People with certain long-term health conditions
• Pregnant women
• Care home residents
• Main carers for older or disabled people or those receiving Carer's Allowance
• People living with someone who has a weakened immune system.

Appointments can be booked via phone or online through the NHS. Some pharmacies may also offer walk-in appointments.

For those aged 18 or over, flu jabs can be booked by contacting their GP surgery or through the NHS App. If you're unsure about your eligibility due to your health conditions, your GP can advise on this.

While the vaccine may cause mild side effects such as soreness at the injection site, body aches, and a slightly raised temperature, these should subside within one to two days. The flu vaccine typically takes up to 14 days to take effect, and there is a possibility you can contract the flu post-vaccination.

However, if this happens, it will likely be a milder version of the disease and you may recover more quickly than if you hadn't had your jab. The NHS guidance states: "Protection from the flu vaccine goes down with time and the types of flu virus the vaccine protects against are updated each year. This is why it's important to get the flu vaccine every year."