The chief executive of Pfizer said people will probably need a third dose of his company’s Covid-19 vaccine within a year of being fully vaccinated.
Albert Bourla also said annual vaccinations against the coronavirus may be required.
"We need to see what would be the sequence and for how often we need to do that, that remains to be seen," Mr Bourla told CNBC.
"A likely scenario is that there will be a need for a third dose, somewhere between six and 12 months, and then from there there will be an annual revaccination, but all of that needs to be confirmed," he said. Variants will play a "key role", he said.
The interview was recorded on April 1.
“It is extremely important to suppress the pool of people that can be susceptible to the virus,” Mr Bourla said.
Researchers do not know how long vaccines provide protection against the coronavirus.
Pfizer published a study this month that said its vaccine, developed in partnership with German company BioNTech, was more than 91 per cent effective at protecting against the coronavirus, and more than 95 per cent effective against severe cases of Covid-19, up to six months after the second dose.
But researchers say more data is needed to determine whether protection lasts beyond six months.
David Kessler, the head of US President Joe Biden's Covid-19 response team, told a congressional committee on Thursday that Americans should expect to receive booster shots to defend against coronavirus variants.
“We don’t know everything at this moment,” Dr Kessler told the House coronavirus crisis subcommittee. “We are studying the durability of the antibody response.
"It seems strong but there is some waning of that and no doubt the variants challenge. For planning purposes only, I think we should expect that we may have to boost."
The Pfizer-BioNTech vaccine plays a leading role in American and European vaccination campaigns.
The pharmaceutical giant announced in February that it was testing a third dose of its vaccine to better battle emerging variants.
MATCH INFO
Iceland 0 England 1 (Sterling pen 90 1)
Man of the match Kari Arnason (Iceland)
AWARDS
%3Cp%3E%3Cstrong%3EBest%20Male%20black%20belt%3A%20%3C%2Fstrong%3ELucas%20Protasio%20(BRA)%3Cbr%3E%3Cstrong%3EBest%20female%20black%20belt%3A%20%3C%2Fstrong%3EJulia%20Alves%20(BRA)%3Cbr%3E%3Cstrong%3EBest%20Masters%20black%20belt%3A%3C%2Fstrong%3E%20Igor%20Silva%20(BRA)%3Cbr%3E%3Cstrong%3EBest%20Asian%20Jiu-Jitsu%20Federation%3A%3C%2Fstrong%3E%20Kazakhstan%3Cbr%3E%3Cstrong%3EBest%20Academy%20in%20UAE%3A%20%3C%2Fstrong%3ECommando%20Group%2C%20Abu%20Dhabi%3Cbr%3E%3Cstrong%3EBest%20International%20Academy%3A%3C%2Fstrong%3E%20Commando%20Group%2C%20Abu%20Dhabi%3Cbr%3E%3Cstrong%3EAfrican%20Player%20of%20the%20Year%3A%20%3C%2Fstrong%3EKatiuscia%20Yasmira%20Dias%20(GNB)%3Cbr%3E%3Cstrong%3EOceanian%20Player%20of%20the%20Year%3A%20%3C%2Fstrong%3EAnton%20Minenko%20(AUS)%3Cbr%3E%3Cstrong%3EEuropean%20Player%20of%20the%20Year%3A%3C%2Fstrong%3E%20Rose%20El%20Sharouni%20(NED)%3Cbr%3E%3Cstrong%3ENorth%20and%20Central%20American%20Player%20of%20the%20Year%3A%20%3C%2Fstrong%3EAlexa%20Yanes%20(USA)%3Cbr%3E%3Cstrong%3EAsian%20Player%20of%20the%20Year%3A%20%3C%2Fstrong%3EZayed%20Al%20Katheeri%20(UAE)%3Cbr%3E%3Cstrong%3ERookie%20of%20the%20Year%3A%3C%2Fstrong%3E%20Rui%20Neto%20(BRA)Rui%20Neto%20(BRA)%3C%2Fp%3E%0A
UAE currency: the story behind the money in your pockets
Fifa%20World%20Cup%20Qatar%202022%20
%3Cp%3E%3Cstrong%3EFirst%20match%3A%20%3C%2Fstrong%3ENovember%2020%0D%3Cbr%3E%3Cstrong%3EFinal%2016%20round%3A%20%3C%2Fstrong%3EDecember%203%20to%206%0D%3Cbr%3E%3Cstrong%3EQuarter-finals%3A%20%3C%2Fstrong%3EDecember%209%20and%2010%0D%3Cbr%3E%3Cstrong%3ESemi-finals%3A%20%3C%2Fstrong%3EDecember%2013%20and%2014%0D%3Cbr%3E%3Cstrong%3EFinal%3A%20%3C%2Fstrong%3EDecember%2018%3C%2Fp%3E%0A
Tips to stay safe during hot weather
- Stay hydrated: Drink plenty of fluids, especially water. Avoid alcohol and caffeine, which can increase dehydration.
- Seek cool environments: Use air conditioning, fans, or visit community spaces with climate control.
- Limit outdoor activities: Avoid strenuous activity during peak heat. If outside, seek shade and wear a wide-brimmed hat.
- Dress appropriately: Wear lightweight, loose and light-coloured clothing to facilitate heat loss.
- Check on vulnerable people: Regularly check in on elderly neighbours, young children and those with health conditions.
- Home adaptations: Use blinds or curtains to block sunlight, avoid using ovens or stoves, and ventilate living spaces during cooler hours.
- Recognise heat illness: Learn the signs of heat exhaustion and heat stroke (dizziness, confusion, rapid pulse, nausea), and seek medical attention if symptoms occur.
Living in...
This article is part of a guide on where to live in the UAE. Our reporters will profile some of the country’s most desirable districts, provide an estimate of rental prices and introduce you to some of the residents who call each area home.
RACE CARD
6.30pm: Baniyas Group 2 (PA) Dh 97,500 (Dirt) 1,400m.
7.05pm Maiden (TB) Dh 82,500 (D) 1,200m
7.40pm Maiden (TB) Dh 82,500 (D) 1,400m
8.15pm Handicap (TB) Dh 82,500 (D) 1,400m
8.50pm Rated Conditions (TB) Dh 120,000 (D) 1,600m
9.25pm Handicap (TB) Dh 95,000 (D) 1,200m
10pm Handicap (TB) Dh 85,000 (D) 2,000m
RESULTS
6.30pm: Maiden (TB) Dh 82,500 (Dirt) 1.600m
Winner: Miller’s House, Richard Mullen (jockey), Satish Seemar (trainer).
7.05pm: Maiden (TB) Dh 82,500 (D) 2,000m
Winner: Kanood, Adrie de Vries, Fawzi Nass.
7.50pm: Handicap (TB) Dh 82,500 (D) 1,600m
Winner: Gervais, Sandro Paiva, Ali Rashid Al Raihe.
8.15pm: The Garhoud Sprint Listed (TB) Dh 132,500 (D) 1,200m
Winner: Important Mission, Royston Ffrench, Salem bin Ghadayer.
8.50pm: The Entisar Listed (TB) Dh 132,500 (D) 2,000m
Winner: Firnas, Xavier Ziani, Salem bin Ghadayer.
9.25pm: Conditions (TB) Dh 120,000 (D) 1,400m
Winner: Zhou Storm, Connor Beasley, Ali Rashid Al Raihe.
LA LIGA FIXTURES
Friday Valladolid v Osasuna (Kick-off midnight UAE)
Saturday Valencia v Athletic Bilbao (5pm), Getafe v Sevilla (7.15pm), Huesca v Alaves (9.30pm), Real Madrid v Atletico Madrid (midnight)
Sunday Real Sociedad v Eibar (5pm), Real Betis v Villarreal (7.15pm), Elche v Granada (9.30pm), Barcelona v Levante (midnight)
Monday Celta Vigo v Cadiz (midnight)
The specs
Engine: 2.3-litre, turbo four-cylinder
Transmission: 10-speed auto
Power: 300hp
Torque: 420Nm
Price: Dh189,900
On sale: now
Results
1.30pm Handicap (PA) Dh50,000 (Dirt) 1,400m
Winner Al Suhooj, Saif Al Balushi (jockey), Khalifa Al Neyadi (trainer)
2pm Handicap (TB) 68,000 (D) 1,950m
Winner Miracle Maker, Xavier Ziani, Salem bin Ghadayer
2.30pm Maiden (TB) Dh60,000 (D) 1,600m
Winner Mazagran, Tadhg O’Shea, Satish Seemar
3pm Handicap (TB) Dh84,000 (D) 1,800m
Winner Tailor’s Row, Royston Ffrench, Salem bin Ghadayer
3.30pm Handicap (TB) Dh76,000 (D) 1,400m
Winner Alla Mahlak, Adrie de Vries, Rashed Bouresly
4pm Maiden (TB) Dh60,000 (D) 1,200m
Winner Hurry Up, Royston Ffrench, Salem bin Ghadayer
4.30pm Handicap (TB) Dh68,000 (D) 1,200m
Essentials
The flights
Emirates and Etihad fly direct from the UAE to Geneva from Dh2,845 return, including taxes. The flight takes 6 hours.
The package
Clinique La Prairie offers a variety of programmes. A six-night Master Detox costs from 14,900 Swiss francs (Dh57,655), including all food, accommodation and a set schedule of medical consultations and spa treatments.
The specs
Engine: 1.5-litre 4-cyl turbo
Power: 194hp at 5,600rpm
Torque: 275Nm from 2,000-4,000rpm
Transmission: 6-speed auto
Price: from Dh155,000
On sale: now
Williams at Wimbledon
Venus Williams - 5 titles (2000, 2001, 2005, 2007 and 2008)
Serena Williams - 7 titles (2002, 2003, 2009, 2010, 2012, 2015 and 2016)
Classification from Tour de France after Stage 17
1. Chris Froome (Britain / Team Sky) 73:27:26"
2. Rigoberto Uran (Colombia / Cannondale-Drapac) 27"
3. Romain Bardet (France / AG2R La Mondiale)
4. Fabio Aru (Italy / Astana Pro Team) 53"
5. Mikel Landa (Spain / Team Sky) 1:24"
Sholto Byrnes on Myanmar politics
Our legal consultant
Name: Hassan Mohsen Elhais
Position: legal consultant with Al Rowaad Advocates and Legal Consultants.
Managing the separation process
- Choose your nursery carefully in the first place
- Relax – and hopefully your child will follow suit
- Inform the staff in advance of your child’s likes and dislikes.
- If you need some extra time to talk to the teachers, make an appointment a few days in advance, rather than attempting to chat on your child’s first day
- The longer you stay, the more upset your child will become. As difficult as it is, walk away. Say a proper goodbye and reassure your child that you will be back
- Be patient. Your child might love it one day and hate it the next
- Stick at it. Don’t give up after the first day or week. It takes time for children to settle into a new routine.And, finally, don’t feel guilty.
Shubh Mangal Saavdhan
Directed by: RS Prasanna
Starring: Ayushmann Khurrana, Bhumi Pednekar
Groom and Two Brides
Director: Elie Semaan
Starring: Abdullah Boushehri, Laila Abdallah, Lulwa Almulla
Rating: 3/5