The world has been running an ultramarathon since the COVID-19 pandemic began, but despite the ups and downs of cases and deaths, the wins and losses of clinical efforts, every day is another step forward toward herd immunity and the finish line.
PERTH, Australia – Australia will be phasing out the Astrazeneca COVID-19 vaccine by October and will rely on Pfizer Inc./Biontech SE and Moderna Inc. vaccines to ramp up lagging vaccination rates.
Medigen Vaccine Biologics Corp. released results from a phase III trial of its enterovirus 71 (EV71) vaccine that showed efficacy of 100% against a virus that causes hand, foot and mouth disease and continues to emerge on a regular basis across Asia.
New three-year safety and efficacy data on Takeda Pharmaceutical Co. Ltd.'s dengue vaccine candidate, TAK-003, showed it to be 62% more effective than placebo in preventing virologically confirmed infections with the virus and 83.6% more effective than placebo in preventing hospitalizations caused by the mosquito-borne viral disease and due to any of the four dengue virus serotypes in patients ages 4 to 16.
New phase IIb clinical trial data show the antigen R-21, a malaria vaccine candidate created by the University of Oxford that uses Novavax Inc.'s Matrix-M adjuvant, demonstrated 77% efficacy in children.
HONG KONG – Laboring under the burden of a new wave of COVID-19 infections that have raised its case total to 15.3 million, second only to the U.S., India is ramping up its vaccination efforts by opening up COVID-19 vaccine availability to citizens 18 years or older from May 1, according to the Ministry of Health and Family Welfare. However, ensuring a steady vaccine supply for the world's second most populous country, with nearly 1.4 billion people, might prove to be an issue. So far, India has administered just over 124 million COVID-19 vaccine doses.
Phase I data on immune responses induced by Inovio Inc.'s COVID-19 DNA vaccine candidate, INO-4800, showed it induced neutralizing antibodies and T-cell responses against all spike protein variants tested in a phase I study, including those first detected in the U.K., South Africa and Brazil. A preliminary report on the analysis, published on bioRxiv, preceded the reporting of phase II data on the candidate expected later this quarter as well as a potential move to phase III testing, pending resolution of a partial clinical hold on the study first announced in September 2020.
DUBLIN – A newly published retrospective analysis of the electronic health care records of more than 500,000 COVID-19 patients has found that infection with SARS-CoV-2 carries “a significantly and substantially” greater risk of cerebral venous thrombosis (CVT) than does either one of the two approved mRNA COVID-19 vaccines or infection with influenza virus.
The current pause on administering Johnson & Johnson’s (J&J) one-dose COVID-19 vaccine likely will continue in the U.S. after the CDC’s Advisory Committee on Immunization Practices (ACIP) declined to make a recommendation on a path forward April 14.
After working 24/7 to develop a COVID-19 vaccine in a historic timeframe and scale up manufacturing at an unprecedented rate, some vaccine manufacturers are now facing what appears to be a concerted Russian misinformation campaign akin to those used in the last two U.S. presidential campaigns.
