35 deaths due to Covid-19 were reported in the last 24 hours in the UK, together with 2,206 new coronavirus infections, and a total of 17,735 new cases in the past 7 days. New variants of ‘increasing’ concern, Dr Joe Pajak writes.


First published in April 2021.


As of today, 9,416,968 people have completed the full course of TWO vaccinations (as currently required with our vaccines) against Covid-19; that's equivalent to 14.10% of the total UK population (or 17.88% of the adult population). While, 32,693,527 people in total have received one dose of the vaccine: that's equivalent to 48.94% of the total population (or 62.07% of the adult population).

What a wonderful achievement by our NHS staff, volunteers, scientists and vaccine producers.

Note: We must remember that the vaccines currently used in the UK require two doses to complete the course, so there is no cause for complacency.

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Vaccines are the best way for people to be protected from COVID-19 and have already saved thousands of lives, there is little doubt that the recent lockdown has contributed to the downward data trends.

Back to today’s data in the UK, which indicate the sad fact that another 35 deaths have been reported in the last 24 hours due to Covid-19. While, transmission of the virus continues to be at a high level with 2,206 new cases reported in the last 24 hours.



It is also worth noting here, the average number of new coronavirus infections, and of deaths due to the virus, reported in the last 28 days of Covid-19 data: average (28-day) reported daily numbers of coronavirus infections (3,698) and the average (28-day) reported daily number of coronavirus deaths (41).

Latest health care data indicate that 2,186 patients suffering from Covid-19 are currently occupying hospital beds (as of 15 April), and 332 patients are requiring intensive care support (as of 16 April) – a continuing concern for our NHS.

Note: The data for deaths attributed to COVID-19 – each following a reported positive test result for COVID-19 within 28 days of their death.

The Full Data

UK COVID-19 data 🦠 reported on 17 April 2021:

(previous day’s figures and change in brackets)

  • 2,206 positive tests in the last 24 hours (↘️ -390 on yesterday’s data)
  • 179 hospital admissions as of 13 April (↘️ -25, since last data report on 12 April)
  • 2,186 hospital in-patients as of 15 April (↘️ -105, since last data report on 14 April)
  • 332 patients on ventilation beds as of 16 April (↗️ +3, since last data report on 15 April)
  • 35 deaths in the last 24 hours (↗️ +1 on yesterday’s data)
  • 4,385,938 total positive cases since the first case was reported at the end of January 2020
  • 127,260 total deaths – within 28 days of first positive test result (for COVID-19 reported up to 17 April 2021)
14-Day UK COVID-19 Data – Graph showing key data as trendlines as of 17 April 2021.

There continues to be debate about how many people need to be vaccinated for the UK to achieve ‘population immunity’. The British Society of Immunology has published a useful report on this aspect. The number required for population immunity being deduced by mathematical formula. For SARS-CoV-2 and vaccine efficacies of around 95% there have been estimates of between 63-75% of people needing to be immune to provide population immunity.

Given the report above (as mentioned yesterday), and the continuing debate about levels of immunity required, the data that is being reported here will now refer to vaccination percentages in terms of the ‘total UK population’ and include the ‘population of adults aged 18 and above’ for reference.

People vaccinated: (up to and including 16 April 2021)

  • 32,693,527 first doses 💉 (↗️ +119,306) – 62.07% of UK adults, or 48.94% of the total UK population.
  • 9,416,968 fully vaccinated 💉 (↗️ +485,421) – 17.88% of UK adults, or 14.10% of the total UK population.

Estimated ®️ number: (as of 16 April 2021)
  • England: Between 0.7 and 1

State of the UK epidemic
To better understand the state of the epidemic in the UK, the UK government recommend “focusing on indicators for the 4 nations of the UK individually, rather than an average value across the UK.”

Estimates of the R value and growth rate for different nations can be found via this link:

The R value and growth rate
The latest reproduction number (R) and growth rate of coronavirus (COVID-19).

New infections and deaths in the last 28 days:

  • 103,554 new cases in total 🦠
  • 1,139 deaths in total

Days since:

  • 443 days since the first reported UK case
  • 407 days since the first reported UK death

The total number of people whose death certificate mentioned Covid-19 as one of the causes: 150,419 – Registered up to Friday 2 April 2021.


These data, and trends, are shared to focus some light on the situation. We must never forget the data represent real people suffering, real people dying  


Data source:






Dr Joe Pajak, Professional experience applied scientific research and development, then director of a national children’s charity, trustee of a disability charity, and governor of NHS foundation trust hospitals.