Update

UK

https://coronavirus.data.gov.uk/details/cases

Cases, + 61,045
Down 21.2%

Hospital admissions, + 8,460
Down 22.1%

Deaths, + 2,270
Down 33.5%

Vaccine, first dose, 20,089,551

Second dose, 796,132

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/963532/COVID-19_vaccine_effectiveness_surveillance_report_February_2021_FINAL.pdf

Pfizer in over 80s

N = 11,860 cases in the UK

Infections continue to decrease for four weeks after vaccination and then plateau

Lower rate of admission amongst vaccinated, at least 14 days after a single dose

Vaccinated individuals who do become symptomatic, protection against death.

Pfizer in over 70s

In context

SIREN (Sarscov2 Immunity and REinfection EvaluatioN), protection against infection, after a single dose of

Pfizer, 72%

Israel that suggested 75% protection against all infections

85% against symptomatic infection after a single dose of Pfizer

P1 variant

https://www.bbc.co.uk/news/uk-56234302

Six found in the UK in February

Unidentified person, infected with P1 variant, took a test 12th or 13th February

Should be self-isolating for 10 days

May or may not have flown into UK

Hotel quarantine rule started 15th February

United States

Trends

https://covid.cdc.gov/covid-data-tracker/#trends_dailytrendscases

Hospitalizations

https://covid.cdc.gov/covid-data-tracker/#hospitalizations

Vaccinations

One or more doses, 49,772,180 (15%)
Two doses, 24,779,920 (7.5%)

Ad26.COV2.S

Only single dose vaccine in use

https://www.washingtonpost.com/health/2021/02/28/johnson-and-johnson-vaccine-cdc-recommendation/

Centers for Disease Control and Prevention, approves 3rd vaccine for over 18s

Food and Drug Administration, Saturday, emergency use

Start shipping doses, today

3.9 million doses this week

20 million doses by the end of March

Storage / transport

Up to two years frozen at –4° F (–20° C)

Up to three months refrigerated at 36–46° F (2–8° C).

Phase 3, n = 45,000 ..