ONE in 10 adults in Wales is likely to be hesitant about receiving the coronavirus vaccine, new figures suggest.

The Office for National Statistics (ONS) found 90 per cent of adults surveyed in Wales felt positively about receiving the Covid-19 jab.

This figure was broadly in line with the rest of Great Britain.

Confidence in vaccines is generally high, but a widespread public awareness campaign – and royal intervention – has failed to prevent lingering doubts for the minority of people. Concern remains, too, over the harmful propaganda that is being spread by so-called anti-vaxx groups online.

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Broken down by age group, the ONS study found younger adults were more likely to have reservations about vaccinations.

Among adults aged 16-29 years, around one in six (17 per cent) reported hesitancy towards the Covid-19 vaccine.

The figure for adults aged 30-49 is 13 per cent.

Just one per cent of adults aged 80 and over, aged 75-79, and aged 70-74 said they were hesitant about the vaccine.

“Higher rates of hesitancy in the younger age groups could be driven by the prioritisation of older age groups in the vaccine rollout,” the ONS said.

The ONS defines vaccine hesitancy as adults who have been offered the vaccine and decided not to be vaccinated; who report being very or fairly unlikely to have the vaccine if offered; and who responded “neither likely nor unlikely”, “don’t know” or “prefer not to say” when asked how likely or unlikely they are to have the vaccine if offered.

The estimates are based on those demonstrating hesitancy towards the vaccine, not necessarily a negative feeling, the ONS added.

The findings cover the period January 13 to February 7.

"Side effects", "long term effects on health" and "how well the vaccine works" were the top three reasons for reporting negative sentiment towards the vaccine, the ONS said.

The study also found that more than four in 10 black adults in Great Britain are likely to be hesitant about receiving the Covid-19 vaccine – the highest level among all ethnic groups, new figures suggest.

Some 44 per cent of black adults reported vaccine hesitancy, compared with 17 per cent of mixed adults, 16 per cent of Asian adults, eight per cent of white adults, and 18 per cent of Chinese adults or adults from other ethnic groups.

Wales is set to hit the milestone of administering one million first vaccine doses this week.

The latest Public Health Wales (PHW) figures show 995,000 people had received their first jab as of March 7, of whom 176,000 people had also received their second dose.

On the same date, PHW published the findings of its own vaccine study, carried out in February with pollsters YouGov.

It found seven per cent of respondents in Wales, aged 18 and over, disagreed with the statement that Covid-19 vaccines approved by the NHS would be "very safe".

Some 77 per cent agreed with the statement, while 13 per cent said they neither agreed nor disagreed, and three per cent said they did not know.