Provided herein are intermediates and processes useful for facile synthesis of compounds of formula (I):

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or a pharmaceutically acceptable salt, a solvate, a tautomer, an isomer or a deuterated analog thereof, wherein Q, P.sup.1 and P.sup.2 are as defined in this disclosure.

The present invention relates to polypeptide fragments comprising an amino-terminal fragment of the PA subunit of a viral RNA-dependent RNA polymerase or variants thereof possessing endonuclease activity, wherein said PA subunit is from a virus belonging to the Orthomyxoviridae family. This invention also relates to (i) crystals of the polypeptide fragments which are suitable for structure determination of said polypeptide fragments using X-ray crystallography and (ii) computational methods using the structural coordinates of said polypeptide to screen for and design compounds that modulate, preferably inhibit the endonucleolytically active site within the polypeptide fragment. In addition, this invention relates to methods identifying compounds that bind to the PA polypeptide fragments possessing endonuclease activity and preferably inhibit said endonucleolytic activity, preferably in a high throughput setting. This invention also relates to compounds and pharmaceutical compositions comprising the identified compounds for the treatment of disease conditions due to viral infections caused by viruses of the Orthomyxoviridae family.

The present invention provides, among other things, methods, reagents, and systems for the treatment, detection, analysis, and/or characterization of influenza infections.

The present invention relates to an anti-influenza virus composition containing a Poncirus trifoliata extract as an active ingredient. The composition of the present invention inhibits influenza virus replication and infection, thereby exhibiting excellent effects in the prevention and treatment of influenza virus infection. The present invention provides a composition for preventing, treating, or alleviating diseases caused by influenza virus.

This invention relates to an adjuvant composition containing at least one binding molecule for neutralizing influenza virus and a vaccine composition containing the same. The composition containing at least one binding molecule for neutralizing influenza virus is capable of increasing the effects of a vaccine, and can thus be used as an adjuvant, which increases an immune response upon vaccine administration, and is very useful in the prevention of diseases caused by viruses.

Disclosed are a pharmaceutical composition, cosmetic product, and food or drink product each comprising a porous ceramic obtained by combustion synthesis of a starting material comprising (1) titanium and (2) at least one member selected from the group consisting of carbon, boron, nitrogen, and silicon; a pharmaceutical composition and cosmetic product each comprising a radical- and nanobubble-containing liquid; and a blood treatment device comprising a blood flow channel for extracorporeal circulation of a patient's blood, the blood flow channel being provided with the porous ceramic above, and the porous ceramic and the blood are brought into contact with each other.

Provided herein are immunization regimens for inducing an immune response (e.g., an antibody response) against influenza virus. In specific aspects, the immunization regimens involve the administration of a chimeric hemagglutinin (HA), a headless HA or another influenza virus stem domain based construct (e.g., the HA stem domain or a fragment thereof) to a subject. In certain aspects, the immunization regimens also involve the administration of an influenza virus neuraminidase immunogen.

The invention concerns compounds of formula (I) having antiviral activity, in particular, having an inhibitory activity on the replication of the respiratory syncytial virus (RSV). The invention further concerns pharmaceutical compositions comprising these compounds and the compounds for use in the treatment of respiratory syncytial virus infection. ##STR00001##

A mucosal adjuvant may have high mucosal immunogenicity and high safety and be useful in the preparation of mucosal vaccines, and a mucosal vaccine composition may include the same. Such mucosal adjuvant may include TGDK. A method for preparing the mucosal vaccine composition may include mixing TGDK with an immunogen.

Described herein are nasal pharmaceutical compositions comprising a porous excipient and an active agent, wherein the active agent is loaded onto a surface of the porous excipient located inside pores of the porous excipient, and wherein the composition is adapted for nasal administration. Also described herein are methods of making and using nasal pharmaceutical compositions.