Vaccine News

Vaccine news brought to you by Precision Vaccinations.

Aug 17, 2024 • 11:55 am CDT
US CDC Travel Health Advisory August 16, 2024

The Centers for Disease Control and Prevention (CDC) today issued a Health Alert Network Health Advisory (CDCHAN-00515) to notify clinicians and public health authorities of an increase in Oropouche virus disease cases confirmed in the Americas region.

The CDC issued this alert because the initial clinical presentation of the Oropouche virus may confuse providers as the symptoms are similar to those of dengue, Zika, and chikungunya.

Between January and August 1, 2024, more than 8,000 cases of Oropouche virus disease were reported, including two deaths and five cases of vertical transmission associated with fetal death or congenital abnormalities.

These Oropouche cases originate from endemic areas in the Amazon basin and regions in South America and the Caribbean.

The virus was first detected in 1955 in Trinidad and Tobago and is endemic in the Amazon basin. 

As of August 16, 2024, Brazil, Bolivia, Peru, Colombia, and Cuba were among the countries reporting cases. As testing and surveillance for Oropouche virus disease increase in the Americas, reports of cases from additional countries are expected.

Throughout 2024, travel-associated cases have been identified in travelers returning to the United States and Europe from Cuba and Brazil.

This CDC Health Advisory offers advice on evaluating and testing travelers who have been in impacted areas with signs and symptoms consistent with Oropouche virus infection.

It also raises awareness of the possible risk of vertical transmission (e.g., from gestational parent to fetus during pregnancy) and associated adverse effects on pregnancy.

The CDC issued a Level 2 Travel Health Notice in August 2024, suggesting pregnant women reconsider non-essential travel to areas with Oropouche virus outbreaks, such as Brazil and Cuba.

The new alert also highlights prevention measures to mitigate the additional spread of the virus and potential importation into unaffected areas, including the U.S.

Oropouche virus belongs to the Simbu serogroup of the genus Orthobunyavirus in the Peribunyaviridae family.

According to the CDC, approximately 60% of people infected with the Oropouche virus become symptomatic. The incubation period is typically 3–10 days. Providers should contact state, tribal, local, or territorial health departments to facilitate diagnostic testing.

As of August 2024, there are no approved Oropouche vaccines available.

Aug 17, 2024 • 11:07 am CDT
from Pixabay

According to local news reporting, an official with the health ministry said that Pakistanis traveling through Iran are being screened for dengue fever.

“Health stations have been established in Mirjaveh and Rimdan borders, in Sistan-Baluchestan Province, to screen Pakistanis to prevent the entry of travel-associated infectious diseases to the country,” ISNA quoted Jafar Miadfar, head of Iran’s Emergency Organization.

These travelers are checked for clinical symptoms such as fever, chills, low consciousness, and skin rashes. Also, needed laboratory tests are implemented, and infected individuals will be prevented from entering Iran, the official added.

The Tehran Times reported on August 16, 2024, that thanks to effective border control measures and quality healthcare, the number of people entering the country with dengue fever has significantly decreased compared to the previous months.

In Europe, Aedes albopictus mosquitos transmit the virus to people.

While dengue screening is a new aspect of international travel, it is related to the increasing number of confirmed cases in Europe.

Dengue epidemics were first reported in the Eastern Mediterranean Region in 1998.

On August 16, 2024, the European Centre for Disease Prevention and Control (ECDC) confirmed local autochthonous (local) dengue cases in Europe this year.

The first dengue case that presented symptoms was in June in France. Overall, France reported six locally acquired dengue cases in 2024.

Previously, the ECDC reported locally acquired dengue virus outbreaks in Italy, Spain, and Croatia, as well as in Djibouti, Egypt, Oman, Pakistan, Saudi Arabia, Somalia, Sudan, and Yemen.

As of August 2024, the World Health Organization (WHO) does not endorse dengue virus testing for international travelers.

However, the WHO does recommend dengue vaccination one month before visiting outbreak areas, such as the Region of the Americas.

Aug 16, 2024 • 11:58 am CDT
ECDC mpox case map August 16, 2024

The European Centre for Disease Prevention and Control (ECDC) today announced the likelihood of infection with mpox virus (MPXV) clade I for EU/EEA citizens traveling to or living in the affected areas and having close contact with affected communities is high, while the likelihood of infection is low when contacts with affected communities are avoided.

The severity of the mpox disease is expected to be low.

Overall, the ECDC's updated risk assessment for these populations is moderate and low, respectively.

“As a result of the rapid spread of this (mpox) outbreak in Africa, ECDC has increased the level of risk for the general population in the EU/EEA and travelers to affected areas. Due to the close links between Europe and Africa, we must be prepared for more imported clade I cases,” says Pamela Rendi-Wagner, Director of ECDC, in a press release.

As of August 16, 2024, the ECDC says to contain any possible clade 1 mpox outbreak in Europe, detecting cases and preventing secondary transmission is vital. This goal can be achieved through:

  • Providing advice to travelers to affected areas on national guidance for vaccination against mpox before traveling. In many countries, the JYNNEOS® (MVA-BN®) vaccine is available. And offering travel advice to people visiting or returning from African countries with confirmed MPXV clade I outbreaks.
  • Rapidly isolating suspected cases until proven negative and, if positive, until symptom resolution. And implementing contact tracing and testing close contacts of confirmed cases following ECDC testing protocols.
  • Continuing risk communication activities and working with civil society organizations to engage population groups at higher risk of infection.

On August 14, 2024, the WHO Director-General determined that the increase of mpox clade 1 virus cases in African countries constitutes a new public health emergency.

In the United States, no clade 1 mpox cases have been detected by the U.S. CDC, and the JYNNEOS vaccine remains available.

Aug 16, 2024 • 11:18 am CDT
Pixabay 2024

 BioNTech SE today announced top-line results from a Phase 3 clinical trial evaluating a mRNA influenza and COVID-19 vaccine candidate in healthy adults.

The combination vaccine comprises Pfizer’s mRNA-based influenza vaccine candidate with the companies’ licensed COVID-19 vaccine.

The Phase 3 trial measured two primary immunogenicity objectives (immunogenicity against the SARS-CoV-2 coronavirus and immunogenicity against influenza A and B), of which one objective was met.

The companies are evaluating adjustments to the combination vaccine candidate to improve immune responses against influenza B and will discuss next steps with health authorities.

“We are dedicated to developing combination vaccines that provide broader protection against multiple respiratory diseases,” said Prof. Ugur Sahin, M.D., CEO and Co-founder of BioNTech, in a press release on August 16, 2024.

“The insights gained from this combination vaccine trial are highly valuable and will play a crucial role in guiding the further development of Pfizer’s and our combination vaccine program against influenza and COVID-19."

"We are committed to drawing on our experience in developing mRNA-based vaccine candidates against multiple antigens and believe we can successfully accomplish this task in collaboration with our partner Pfizer.”

As of August, updated influenza vaccines for the 2024-2025 flu season in the United States became available at pharmacies.

Aug 16, 2024 • 9:38 am CDT
by Gerd Altmann

The National Institute of Allergy and Infectious Diseases (NIAID) of the National Institutes of Health announced topline results from a preliminary PALM 007 phase 2 clinical trial analysis.

The NIAID reported on August 15, 2024, that the study did not meet its primary endpoint of a statistically significant improvement in time to lesion resolution within 28 days post-randomization for patients with mpox who were administered SIGA’s oral tecovirimat (TPOXX®) a highly targeted antiviral treatment, versus placebo.

However, a meaningful improvement was observed in patients receiving tecovirimat whose symptoms began seven days or fewer before randomization and those with severe or more significant disease.

This study's finding is essential given Africa's ongoing clade 1 mpox virus outbreak.

“These data showing maximum benefit in patients treated early and with severe disease are entirely consistent with the mechanism of action of tecovirimat and with the studies in animals that led to U.S. FDA approval of this medicine for smallpox..... We believe these data warrant further investigation and support our view that post-exposure prophylaxis will be vital for the treatment of severe cases of mpox and all cases of smallpox,” stated Dennis Hruby, Chief Scientific Officer, in a press release.

On July 22, 2024, the U.S. government exercised a procurement option to deliver approximately $113 million in TPOXX treatment courses. 

TPOXX is currently available in the U.S., United Kingdom, Canada, and Europe. 

Aug 15, 2024 • 11:23 am CDT
US CDC

The Public Health Agency of Sweden today announced a person who sought care at Region Stockholm had been diagnosed with mpox caused by the clade I variant.

According to the agency, on August 15, 2024, this person received care and rules of conduct, says Magnus Gisslén, state epidemiologist at the Public Health Agency of Sweden, in a press release.

The agency says this is the first case caused by the sexually-transmitted clade I virus to be diagnosed outside the African continent. The person was infected during a recent stay in that part of Africa.

Recently, the World Health Organization declared the clade I mpox outbreak in the Democratic Republic of Congo and neighboring countries a public health emergency of international concern.

The fact that a patient with mpox is treated in the country does not affect the risk to the general population, a risk that the European Centre for Disease Prevention and Control currently considers very low. A new assessment is expected shortly.

However, occasional imported cases like the current one may continue to occur.

In the United States, the Clade 2 mpox outbreak began in May 2022 and has substantially diminished in 2024. However, the JYNNEOS smallpox / mpox vaccine continues to be available at specific clinics and pharmacies in the U.S.

Aug 15, 2024 • 6:31 am CDT
by Mircea Iancu

According to a recent article published by npj vaccines, infection with high-risk human papillomavirus (HPV) is widely recognized as the primary cause of cervical and other malignant cancers.

While there are six licensed prophylactic vaccines against HPV, none of them show any significant therapeutic effect on pre-existing infections.

Thus, a prophylactic vaccine endowed with therapeutic activity would afford protection regardless of the vaccine recipient's HPV infection status.

The key to eliminating virus-infected cells lies in anti-early HPV-encoded proteins, particularly anti-E6 or anti-E7 T-cell responses. 

This article describes the refinement and further potentiation of a dual-purpose HPV nanoparticle vaccine (cPANHPVAX) relying on eight different HPV L2 peptide epitopes and the E7 oncoantigens from HPV16 and 18.

cPANHPVAX not only induces anti-HPV16 E7 cytotoxic T-cell responses in C57BL/6 mice, but also anti-HPV18 E7 T-cell responses in transgenic mice with the A2.DR1 haplotype.

These cytotoxic responses add to a potent, broad-coverage humoral (HPV-neutralizing) response.

cPANHPVAX safety was further improved by deleting the pRb-binding domains of E7.

These researchers wrote, 'this dual-purpose vaccine holds great potential for clinical translation as an immune-treatment capable of targeting active infections as well as established HPV-related malignancies, thus benefiting both uninfected and infected individuals.'

Zhao, X., Zhang, Y., Trejo-Cerro, O. et al. A safe and potentiated multi-type HPV L2-E7 nanoparticle vaccine with combined prophylactic and therapeutic activity. npj Vaccines 9, 119 (2024). https://doi.org/10.1038/s41541-024-00914-z. 

Aug 15, 2024 • 5:26 am CDT
WHO Cholera outbreak map 2024

The World Health Organization (WHO) today announced an updated External Situation Report #17 on a multi-country outbreak of cholera.

Published on August 15, 2024, the global cholera response continues to be affected by a critical shortage of Oral Cholera Vaccines (OCV) as demand continues to outpace supply.

Since January 2023, 18 countries have requested 105 million doses, nearly double the 55 million doses produced in this period.

Furthermore, in January 2023, the WHO classified the global resurgence of cholera as a grade 3 emergency, the highest internal level for emergencies in WHO.

As of the end of July 2024, a cumulative total of 307,433 cholera cases and 2,326 deaths were reported from 26 countries across five WHO regions.

Based on the number of outbreaks and their geographic expansion, alongside the shortage of vaccines and other resources, WHO continues to assess the risk at the global level as very high, and the event remains classified as a grade 3 emergency.

As of August 2024, the WHO and other governments have authorized four OVCs.

For example, Valneva SE's DUKORAL® is an oral, inactivated vaccine for diarrhea prevention authorized in various countries.

DUKORAL contains four different inactivated strains of V. cholerae serotype O1 and part of a toxin from one of these strains as active substances. Valneva recently announced that DUKORAL®  sales totaled €14.9 million for the first half of 2024.

In the United States, cholera vaccines are in limited supply in 2024, but available at certain travel vaccine pharmacies.

Aug 15, 2024 • 4:24 am CDT
Appili Therapeutics Inc. products August 2024

Appili Therapeutics Inc. recently announced a product update for the first quarter of its fiscal year 2025, which ended on June 30, 2024.

“In recent months, we’ve achieved significant milestones by engaging regulatory authorities for ATI-1701 and ATI-1801, and together with our partner, Saptalis Pharmaceuticals, we launched our leading asset, LIKMEZ™ (ATI-1501),” said Don Cilla, President and CEO of Appili, in a press release on August 13, 2024.

“These achievements, together with ATI-1701 U.S. Air Force Academy (USAFA) funding commitments, are expected to enable us to execute our infectious disease programs and advance their development to bring these products to market for the benefit of patients and shareholders.”

ATI-1701, a novel live-attenuated vaccine for preventing F. tularensis, has secured $14 million in awards from the USAFA.    Tularemia is a potentially serious illness caused by the bacterium Francisella tularensis. People can become infected in several ways, including tick and deer fly bites and contact with infected animals.

Under the USAFA Cooperative Agreement, Appili will manage a comprehensive development program, including nonclinical studies, CMC/manufacturing, clinical preparatory, and regulatory activities supporting an IND submission in 2025. Appili has engaged with the U.S. Food and Drug Administration (“FDA”) via a pre-IND meeting, confirming the development pathway for ATI-1701, and is incorporating suggested changes into the development plan.

ATI-1801, a novel topical formulation of paromomycin (15% w/w), is under advanced clinical development for treating cutaneous leishmaniasis, a Neglected Tropical Disease, is a disfiguring skin infection affecting hundreds of thousands globally. Cutaneous and mucosal leishmaniasis can cause substantial morbidity; visceral and mucosal leishmaniasis can be life-threatening.

Appili is currently engaging with the FDA. In 2024, it submitted a type-B meeting request to discuss linking previously generated Phase 3 data and agreeing on the necessary registration package for a New Drug Application submission. ATI-1801 has received an Orphan Drug Designation from the FDA for certain forms of cutaneous leishmaniasis. 

In September 2023, Appili and its U.S. partner, Saptalis Pharmaceuticals LLC., announced the approval by the U.S. FDA of LIKMEZ™ (ATI-1501), a proprietary taste-masked liquid suspension formulation of metronidazole. LIKMEZ is the first FDA-approved ready-made suspension of metronidazole, addressing the unmet need in both pediatric patients and patients with dysphagia. Saptalis launched LIKMEZ in November 2023, and the product is available to patients and doctors in the U.S.

Aug 14, 2024 • 12:57 pm CDT
DuckDuckGo map August 2024

Eisai Co., Ltd. and Biogen Inc. announced that the Ministry of Health and Prevention in the United Arab Emirates (UAE) has approved humanized anti-soluble aggregated amyloid-beta monoclonal antibody LEQEMBI® (lecanemab) for the treatment of Alzheimer’s disease (AD).

LEQEMBI is the first approved treatment shown to reduce the rate of disease progression and to slow cognitive and functional decline through this mechanism. 

In the UAE, AD is considered the most common cause of dementia, typically accounting for 60-70% of cases. It is reported that 4.09% of people over 60 years old have dementia.

As of August 13, 2024, LEQEMBI is also approved in the U.S., Japan, China, South Korea, Hong Kong, and Israel and is being marketed in the U.S., Japan, and China. 

Eisai has also submitted applications for approval of LEQEMBI in 11 countries and regions.

In the United States, a supplemental Biologics License Application for intravenous maintenance dosing was submitted to the U.S. FDA in March 2024 and was accepted in June 2024. The rolling submission of a Biologics License Application for maintenance dosing of a subcutaneous injection formulation, which is being developed to enhance patient convenience, was initiated in the U.S. under FDA Fast Track status in May 2024.

Aug 14, 2024 • 9:33 am CDT
Africa CDC July 2024 mpox case map

Since the beginning of 2022 and as of late July 2024, a total of 37,583 mpox cases and 1,451 deaths (case fatality rate 3.9%) have been reported from 15 African Union Member States. In an attempt to reduce this outbreak, the U.S. FDA and EMA-approved mpox vaccine is being deployed.

Bavarian Nordic A/S recently announced a new order from the European Health Emergency Preparedness and Response Authority (HERA) for the MVA-BN® (JYNNEOS) vaccine.

HERA will procure 175,420 vaccine doses to donate to the Africa Centres for Disease Control and Prevention (ACDC) to support their strengthened response to the ongoing mpox outbreak in Africa.

Additionally, Bavarian Nordic will donate 40,000 doses to HERA, which will also be donated to the ACDC.

This larger donation follows a recent pledge from Bavarian Nordic for 15,000 doses as part of a coordinated response by Gavi, WHO, and UNICEF in the African region.

“Mpox is spreading at an alarming rate in Africa, calling for further action from the international community. We are proud to support HERA’s contribution of vaccines to the region and are pleased to announce an additional donation from Bavarian Nordic,” said Paul Chaplin, President and Chief Executive Officer of Bavarian Nordic, in a press release on August 13, 2024.

Currently, two African countries have granted Emergency Use Authorization for the MVA-BN vaccine.

Seperately, the WHO Director-General issued the following statement on August 14, 2024, "In light of the expanding outbreak in east and central Africa, and the potential for further international spread within and outside Africa, I have convened this Emergency Committee under the International Health Regulations to advise me on whether the outbreak represents a public health emergency of international concern."

"When I declared an end to the previous mpox PHEIC last year (2023), I issued standing recommendations under the IHR, which are due to expire next week. I have decided to extend them for another year to support countries in responding to the chronic risk of mpox."

"Were I to decide, on your advice, that the current situation represents a public health emergency of international concern, I would issue temporary recommendations by the IHR, again on your advice."

The JYNNEOS vaccine is available in the United States at designated clinics and pharmacies.

Aug 14, 2024 • 6:05 am CDT
US CDC chikungunya case map August 2024

With one approved chikungunya vaccine already available, the U.S. Food and Drug Administration (FDA) has accepted and granted Priority Review for the Biologics License Application (BLA) for Bavarian Nordic A/S CHIKV VLP, a vaccine candidate for immunization to prevent disease outbreaks caused by chikungunya virus infection in individuals 12 years of age and older.

The Priority Review designation means the FDA aims to complete its review within six months. The FDA has assigned a target action date for the Prescription Drug User Free Act of February 14, 2025.

CHIKV VLP is an adjuvanted VLP-based vaccine candidate for active immunization to prevent disease caused by CHIKV infection.

Paul Chaplin, President and CEO of Bavarian Nordic, said in a press release on August 13, 2024, “The FDA review, along with the ongoing review of our CHIKV VLP vaccine by the European Medicines Agency, represent the first regulatory reviews of a chikungunya vaccine for adolescents, potentially providing a broader usage by populations at risk of this debilitating disease.”

CHIKV VLP is currently also under accelerated assessment review with the EMA, potentially supporting approval of the vaccine by the European Commission in the first half of 2025.

Chikungunya is a mosquito-borne viral disease caused by the chikungunya virus (CHIKV). The disease typically presents with acute symptoms, including fever, rash, fatigue, headache, and often severe and incapacitating joint pain.

While mortality is relatively low, morbidity is high; nearly 50% of individuals with CHIKV disease have debilitating long-term symptoms that can intensify with age.

Over the past few decades, CHIKV has emerged in several previously non-endemic regions in Asia, Africa, southern Europe, and the Region of the Americas, often causing large, unpredictable outbreaks. 

As of August 8, 2024, the Pan American Health Organization (PAHO) reported over 371,167 CHIKV cases in the Americas this year. Between 2013 and 2023, the PAHO reported more than 3.7 million CHIKV cases in the Americas. 

The U.S. CDC reported from 2006 to 2023, 4,590 travel-related CHIKV cases were reported in the U.S., in areas such as Florida.

However, Locally acquired cases have not been reported in U.S. states or territories since 2019.

Aug 13, 2024 • 3:38 pm CDT
American Samoa Visitors Bureau map 2024

According to a recent Morbidity and Mortality Weekly Report, more than half of school-aged children in American Samoa have evidence of a dengue fever virus infection. 

The estimated seroprevalence among all students aged 7–16 years was 59% (95% CI = 47%–71%) and was 60% (95% CI = 48%–72%) among those age-eligible for vaccination (i.e., those aged 9–16 years).

Dengue seroprevalence was lowest among children aged 8 (46%; 95% CI = 32%–60%).

The U.S. CDC's Notes from the Field (73(31);686–688) published on August 8, 2024, suggests American Samoa exceeds the minimum 20% threshold established for the introduction of recommended dengue vaccines to reduce the risk of hospitalization and severe dengue in seronegative children and adolescents.

The authors concluded, "In American Samoa, dengue vaccines could be part of a broader strategy for dengue control."

As of August 13, 2024, access to dengue vaccines in the United States is very limited.

American Samoa is located in the Pacific Ocean, halfway between Hawaii in the north and New Zealand in the south. The CDC recommends checking the vaccines and medicines list and visiting your healthcare provider at least a month before your trip to American Samoa to get necessary supplies. 

These authors disclosed no potential conflicts of interest.

Aug 13, 2024 • 2:16 am CDT
by Alessandro D'Andrea

Valneva SE today reported its consolidated financial results for the first half of the year, which ended June 30, 2024. On August 13, 2024, Valneva reported total revenues of €70.8 million, Net Profit of €34.0 million, and Cash position of €131.4 million.

Valneva’s commercial portfolio consists of three travel vaccines: IXIARO®/JESPECT®, DUKORAL®, and the recently launched IXCHIQ®, the first monovalent, single-dose, live-attenuated chikungunya vaccine approved by the U.S. Food and Drug Administration.

The Company recently confirmed that IXCHIQ's two-year antibody persistence data were published in the Lancet Infectious Diseases and reported positive six-month data for the Phase 3 adolescent study of IXCHIQ; it expects to submit label extensions for 12 to 17 years in the U.S., Europe, and Canada in the second half of 2024.

In a press release, Peter Bühler, Valneva’s Chief Financial Officer, commented, “Our first half sales performance is in line with our expectations."

"We aim to further capitalize on the travel industry recovery as we focus on ramping up sales for IXCHIQ® to support our commercial growth while continuing to execute on our key R&D and regulatory milestones."

The Company also distributes certain third-party products in countries where it operates its own marketing and sales infrastructure.

For example, the Company has an exclusive worldwide license for the S4V Shigella vaccine candidate, adding an attractive Phase 2 clinical asset to Valneva’s R&D pipeline without impacting full-year or mid-term financial guidance.

The half-year financial report, including the condensed consolidated interim financial report and the half-year management report, is available on the Company’s website (Financial Reports—Valneva). 

On August 13, 2024, Valneva CEO Thomas Lingelbach spoke on YouTube about the Company’s half-year results and plans for the rest of 2024.

Aug 12, 2024 • 11:36 am CDT
US CDC RSV case map August 2024

Pfizer Inc. today announced positive top-line safety and immunogenicity results from substudy B of the ongoing pivotal Phase 3 clinical trial.

The trial is evaluating two doses of the ABRYSVO™ vaccine in immunocompromised adults aged 18 and older at risk of developing severe respiratory syncytial virus (RSV)- associated lower respiratory tract disease.

ABRYSVO was well-tolerated during the trial, showing a safety profile consistent with findings from other vaccine studies.

While the company evaluated two doses, a single 120 µg dose of ABRYSVO generated a strong neutralizing response against both subtypes of RSV, RSV-A, and RSV-B across all cohorts and age groups in the study.

Pfizer plans to share these findings at an upcoming scientific conference, publish them in a peer-reviewed scientific journal, and submit the data to the regulatory agencies for review.

“Immunocompromised adults, such as patients with cancer or autoimmune disorders, have a substantially increased risk of experiencing severe complications from RSV, yet there are currently no vaccines approved for those aged 18 to 59 in the U.S.,” said Annaliesa Anderson, Ph.D., Senior Vice President and Chief Scientific Officer, Vaccine Research and Development, Pfizer, in a press release on August 12, 2024.

“We are encouraged by the positive top-line data from this study, which provide important evidence that ABRYSVO has the potential to address a significant unmet need in this vulnerable population.”

These most recent data in immunocompromised adults build on the body of evidence supporting the profile of ABRYSVO in high-risk adults. 

As of early August 2024, three RSV vaccines have been approved for use in the U.S., and several vaccine candidates are conducting late-stage studies.

Additionally, the U.S. CDC reported on August 9, 2024, that RSV sections were generally low, except for the state of Florida.