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EV71 vaccines: a first step towards multivalent hand, foot and mouth disease vaccines
1VaxiBio Inc, 54 Strathgowan Avenue, Toronto, Ontario, M4N 1B9 Canada.
Insights
Developing vaccines for hand, foot, and mouth disease (HFMD) is crucial. Current vaccines protect against Enterovirus 71 (EV71) but not coxsackievirus A16, highlighting the need for broader protection.
Area of Science:
- Virology
- Vaccinology
- Public Health
Background:
- Enterovirus A infections, particularly Enterovirus 71 (EV71) and coxsackievirus A16, are leading causes of hand, foot, and mouth disease (HFMD) in children.
- These neurotropic viruses pose a significant public health threat, especially in the Asia-Pacific region, causing severe neurological complications.
Purpose of the Study:
- To summarize the challenges in developing effective vaccines for hand, foot, and mouth disease.
- To emphasize the need for multivalent vaccines addressing multiple enterovirus strains.
Main Methods:
- This editorial reviews existing literature and vaccine development strategies for HFMD.
- It analyzes the limitations of current monovalent vaccines and proposes future directions.
Main Results:
- Formalin-inactivated EV71 vaccines provide protection against EV71 but not coxsackievirus A16.
- A bivalent vaccine targeting both EV71 and coxsackievirus A16 is a logical next step.
Conclusions:
- The development of multivalent HFMD vaccines, including other prevalent enteroviruses like coxsackievirus and echovirus 30, is essential.
- Overcoming challenges in developing broad-spectrum HFMD vaccines is critical for global child health.
Abstract:
Enterovirus A infections are the primary cause of hand, foot and mouth disease in infants and young children. Enterovirus 71 (EV71) and coxsackievirus A16 have emerged as neurotropic viruses responsible for severe neurological complications and a serious public health threat across the Asia-Pacific region. Formalin-inactivated EV71 vaccines have elicited protection against EV71 but not against coxsackievirus A16 infections. The development of a bivalent formalin-inactivated EV71/FI coxsackievirus A16 vaccine should be the next step towards that of multivalent hand, foot and mouth disease vaccines which should ultimately include other prevalent pathogenic coxsackieviruses and echovirus 30. This editorial summarizes the major challenges faced by the development of hand, foot and mouth disease vaccines.
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Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:

