CHICAGO: New offshoots of the dominant BA.5 subvariant of Omicron known as BQ.1 and BQ.1.1 are gaining ground in the United States as the SARS-Cov-2 virus that triggered the COVID-19 pandemic continues to evolve.
The following describes the new coronavirus subvariants and how they may impact people.
WHAT ARE BQ.1 AND BQ.1.1?
BQ.1 and BQ.1.1 are among the more than 300 sublineages of the Omicron variant circulating globally, 95% of which are direct descendants of BA.5, according to the World Health Organization.
In early July, BA.5 became the dominant subvariant of the coronavirus circulating in the United States, but in October it started giving way to BQ.1 and BQ.1.1.
Both contain genetic mutations that make it harder for the immune system to recognize and neutralize the virus. That makes them better at infecting people in spite of immunity from vaccinations and prior infections.
Evidence from France, however, where the variants caused a surge in cases, suggests they do not appear to be causing increased rates of hospitalizations and deaths, Dr. Eric Topol, a genomics expert and director of the Scripps Research Translational Institute in La Jolla, California, said on Twitter.
WILL TREATMENTS STILL WORK?
Mutations in these two subvariants make it unlikely that the antibody drug bebtelovimab sold by Eli Lilly and Co will be effective at neutralizing them, according to the U.S. Food and Drug Administration. The drug, which is used to treat mild-to-moderate COVID-19 in adults and children, remains authorized for all U.S. regions that may be experiencing infections from other subvariants of the virus.
Such antibody treatments are vulnerable to changes in the virus because they target specific parts of the virus. Experts predict Pfizer Inc's PFE.N oral antiviral treatment Paxlovid, which works by blocking an enzyme the virus needs to replicate, is expected to remain effective.
WILL THE UPDATED VACCINE BOOSTERS STILL WORK?
It is not yet clear how these new versions of the coronavirus will affect populations in the United States, where booster uptake has been slow and COVID mitigations such as masks and social distancing have largely been abandoned.
There is, however, early evidence from Pfizer and German partner BioNTech SE 22UAy.DE that their updated boosters, which target BA.5 and BA.4 as well as the original virus, increase levels of infection-fighting antibodies against Omicron subvariants in older adults.
A study of blood from three dozen adults showed the shot increased neutralizing antibodies against the BA.4/BA.5 Omicron subvariants by fourfold compared with the original shot after one month.
It is not yet clear whether that will translate into higher protection against the BQ.1 and BQ.1.1 subvariants, but their close relationship to BA.5 may work in the booster's favor.
Reuters
Sun Nov 06 2022
A vial of the Pfizer-BioNTech coronavirus disease (COVID-19) booster vaccine targeting BA.4 and BA.5 Omicron sub variants is pictured at Skippack Pharmacy in Schwenksville, Pennsylvania, US. - REUTERS
EPL: Man United sama hebat dengan skuad tercorot liga
Penjaga gol Manchester United, Andre Onana menjadi punca buat pasukannya kehilangan kemenangan menentang Burnley.
Pedofilia MRSM Tumpat: Polis selesai panggil 14 individu
Polis selesai memanggil 14 individu untuk dirakam keterangan berhubung kes pedofilia melibatkan seorang guru di Maktab Rendah Sains Mara (MRSM) di Tumpat.
PRK Kuala Kubu Baharu: Pengundi tentukan kemenangan, bukan Tun M - Azmin
Kemenangan DAP dalam PRK Kuala Kubu Baharu hanya akan ditentukan oleh pengundi dan bukannya bekas Perdana Menteri, Tun Dr Mahathir Mohamad.
PRK Kuala Kubu Baharu: Calon PN sah miliki Sarjana Eksekutif UMPSA
Calon Perikatan Nasional (PN), Khairul Azhari Saut, 54, disahkan memiliki Sarjana Eksekutif Pengurusan Perniagaan dari Universiti Malaysia Pahang Al-Sultan Abdullah (UMPSA).
PRK Kuala Kubu Baharu: Calon PN tunjuk bukti kelayakan akademik
Calon Perikatan Nasional (PN) bagi Pilihan Raya Kecil (PRK) Kuala Kubu Baharu, Khairul Azhari Saut menunjukkan bukti berkaitan kelayakan akademiknya bagi menjawab isu berkenaan.
Enakmen kawalan hiburan baharu, Kelantan yakin tidak bercanggah
Kerajaan Kelantan yakin proses penggubalan Enakmen Kawalan Hiburan baharu Kelantan yang akan dibentang pada sidang Dewan Undangan Negeri (DUN) selepas ini tidak bercanggah dengan aturan sedia ada.
Misi teroka peluang ekonomi, tarik pelaburan baharu di WEF - PM
Delegasi Malaysia akan berkongsi dasar dan hala tuju negara di samping mempertegas pendirian negara dalam isu geopolitik serantau di hadapan pemimpin dunia.
JBPM Terengganu berdepan kesukaran padam kebakaran
JBPM Terengganu menghadapi kesukaran memadamkan kebakaran di Kampung Sungai Ikan Kuala Nerus yang melibatkan lebih 75% tapak pelupusan sampah
Polis jangka laporan baharu selepas berkas guru tahfiz
Polis Kelantan menjangkakan lebih banyak laporan polis berkenaan pencabulan di sebuah pusat tahfiz di Machang selepas penahanan seorang guru.
Polis Jerman rampas 4 kereta Bugatti Veyron edisi terhad yang dikaitkan dengan 1MDB
Kenderaan berkenaan dikatakan sebahagian daripada siri "Legenda" khas Bugatti Veyron, dengan hanya 18 daripada supercar tersebut dibina dalam enam spesifikasi.
COVID-19 terkawal tetapi virus akan terus ada bersama kita - KKM
Kebanyakan kes COVID-19 yang dilaporkan mengalami gejala ringan dan tidak memerlukan rawatan di hospital.
COVID-19: Kes aktif varian Omicron bergejala ringan - Pakar perubatan
Beliau berkata kes COVID-19 dijangka berkurangan selepas satu bulan berdasarkan pemerhatian trend jangkitan virus oleh KKM.
COVID-19: Kes meningkat kepada 12,757 pada ME49/2023
Walaupun terdapat peningkatan kes COVID-19, keadaan di Malaysia masih terkawal dan tidak membebankan fasiliti kesihatan sedia ada.
COVID-19: Kes jangkitan meningkat kepada 2,305 minggu lalu, 21 varian Omicron
Daripada jumlah itu, terdapat 20 kes Variant of Concern (VOC) dan satu kes Variant of Interest (VOI).
COVID-19: Qatar kesan kes pertama varian baharu EG.5
Qatar mengesan kes pertama varian baharu COVID-19 dikenali EG.5 di negara itu, kata Kementerian Kesihatan Awam pada Khamis.
Saintis seru rakyat UK pakai pelitup muka ekoran varian baharu "Eris"
Saintis menggesa orang ramai di United Kingdom kembali memakai pelitup muka di tengah-tengah kebimbangan "mutasi" subvarian Omicron, "Eris" yang kini menyumbang satu daripada 10 kes di negara itu.
Berita antarabangsa pilihan sepanjang hari ini
Antara pelbagai berita luar negara yang disiarkan di Astro AWANI, berikut adalah yang paling menjadi tumpuan sepanjang Selasa, 18 April 2023.
COVID-19: Indonesia kesan tujuh kes Arcturus setakat ini
Indonesia mengesan lima kes baharu subvarian Omicron, Arcturus, menjadikan jumlah keseluruhan kepada tujuh kes setakat semalam.
Kes COVID-19 dalam negara masih terkawal - Dr Zaliha
Kes COVID-19 di dalam negara ini masih lagi terkawal meskipun berlaku sedikit peningkatan kebelakangan ini dan rakyat tidak perlu panik, kata Menteri Kesihatan Dr Zaliha Mustafa.
Vaksin COVID-19: Australia lancar dos penggalak kelima
Keputusan itu memperluaskan kelayakan suntikan dos penggalak merangkumi kira-kira 14 juta orang yang akan ditawarkan vaksin.