Connect with us

Coronavirus (Covid-19)

Pfizer Vaccine protection after 6 months: Covid 47%, Hospitalisation 90%

Neill Fronde



PHOTO: Pfizer loses efficacy over time, but still prevents hospitalisation. (via Flickr/Marco Verch)

New data this week shows that the Pfizer vaccine which has proven to be 88% effective against Covid-19 dropped to just 47% efficacy six months after the second dose. The report published Monday in the Lancet public medical journal had originally been released in August before being peer-reviewed, and lays clear the need for booster shots as efficacy drops.

Data from the study shows that it is likely in fact a drop-in efficacy and not the rise of more contagious variants as, while the vaccine may not prevent the transmission of a Covid-19 over time, the vaccine’s effectiveness in preventing hospitalisation and death remain at 90% at least 6 months. The chief medical officer at Pfizer said that analysis of its effect on all variants of concern show the vaccine to be effective.

Approximately 3.4 million health cases from members of Kaiser Permanente Southern California were studied as the medical group teamed up with Pfizer to monitor the effects from December 2020, when the vaccine first became available until August of 2021.

The study showed that even against the Delta variant, the Pfizer vaccine was 93% effective in the first month, though after 4 months it declined to 53%. For other variants, it declined 30% from 97 to 67%. This is good news as many had feared the Delta variant could be what they call an escape variant that is mutated far enough that vaccines are of little effect against the strain, but this data suggests that is not the case.

One limitation of the study, however, was that information was not recorded regarding occupations and mask-wearing, both of which could affect the exposure and risk of the patient as well as the frequency that the patient is tested for Covid-19.

Currently, the United States Food and Drug Administration has approved the Pfizer BioNTech vaccine for use as a booster in older adults and some high-risk people, but are still looking at more data to decide whether it would be recommended for all people.

SOURCE: Asia News Today

For more information on Covid-19 Insurance, CLICK HERE


Get more from The Thaiger

📱 Download our app on Android or iOS
👋 Have your say on our Thailand forum
🔔 Subscribe to our daily newsletter
📺 Subscribe / Join for daily shows
👍 Like/Follow us on Facebook
🐦 FOLLOW us on Twitter
📷 FOLLOW us on Instagram


Join the conversation and have your say on Thailand news published on The Thaiger.

Thaiger Talk is our new Thaiger Community where you can join the discussion on everything happening in Thailand right now.

Please note that articles are not posted to the forum instantly and can take up to 20 min before being visible. Click for more information and the Thaiger Talk Guidelines.

Neill is a journalist from the United States with 10 years broadcasting experience and national news and magazine publications. He graduated with a degree in journalism and communications from the University of California and has been living in Thailand since 2014.

Follow Thaiger by email:

Drugs4 hours ago

Record drug bust in Laos follows pandemic’s methamphetamine boom

World5 hours ago

Alec Baldwin could face criminal charges for shooting on set

Thailand6 hours ago

Thailand News Today | No more Lisa for new years, Abduction linked to Reused gloves | Oct. 28

Sponsored2 days ago

Top 5 dental clinics by Dental Corporations PLC in Thailand

Welcome back to Thailand!

Thaiger is getting behind local businesses for the restart of tourism in Thailand - up to 50% discounts across all advertising packages!

Transport6 hours ago

Bangkok public transport back to normal capacity on Monday

Thailand6 hours ago

Thailand’s Industry Ministry is backing hemp as a new cash crop

Economy6 hours ago

Reform urged for foreigners to invest or buy condos in Thailand

Join the conversation on the Thaiger Talk forums today!
Drugs7 hours ago

55 million meth pills seized in Laos in biggest SE Asian bust ever

Coronavirus (Covid-19)7 hours ago

Thursday Covid Update: 9,658 new cases; provincial totals

Phuket8 hours ago

BlackPink’s Lisa says “no” to Phuket New Year countdown event

Bangkok8 hours ago

Khao San Road expects very slow recovery, even after reopening

Thailand9 hours ago

Truckers and tour bus drivers plan strike over diesel prices

Malaysia9 hours ago

World’s first unisex condom invented by Malaysian gynaecologist

Thailand9 hours ago

Floating stage, 2nd hand medical gloves, Thai superstar Lisa, Crack ups | Thaiger Bites | Ep. 48

Property9 hours ago

Covid-19 has accelerated Thailand’s property market disruption by 5 to 10 years

Thailand9 hours ago

PM Prayut Chan-o-cha to outline Thailand’s path to net zero at UN Climate Change Conference

Thailand1 month ago

Morning Top Stories Thailand | Police to end protests, Human Trafficking | September 14

Thailand8 months ago

Thailand News Today | Thai Airways in rehab, All go for Songkran | March 4

Tourism8 months ago

Phuket’s nightlife. Yes, bars and clubs are still open | VIDEO

Phuket8 months ago

Thailand News Today | Covid passport talks, Thai Airways heads to court | March 2

Tourism8 months ago

Phuket Thai food treats you need to try | VIDEO

Thailand8 months ago

Thailand News Today | Bars, pubs and restaurants ‘sort of’ back to normal | Feb 23

Tourism8 months ago

In search of Cat & Dog Cafés in Phuket Town | VIDEO

Thailand9 months ago

Thailand News Today | Gambling crackdown, Seafood market to reopen, Vlogger challenge | Jan 21

Thailand9 months ago

Thailand News Today | Covid testing for visas, Business impact, Vaccine approval | January 19

Thailand9 months ago

Thailand News Today | Weekend Bangkok bombs, Thailand fires, Covid update | January 18

Thailand10 months ago

Thailand News Today | Stray car on runway, Indonesian quake, 300 baht tourist fee | January 15

Thailand10 months ago

Thailand News Today | Governor off respirator, sex-trafficking arrest, condo prices falling | January 14

Thailand10 months ago

Thailand News Today | Chinese vaccine, Thailand ‘drug hub’, Covid update | January 13

Thailand10 months ago

Thailand News Today | Bangkok may ease restrictions, Phuket bar curfew, Vaccine roll out | January 12

Thailand10 months ago

Thailand News Today | Covid latest, Cockfights closed down, Bryde’s Whale beached | January 11