Abstract: The present invention provides the complete genomic sequence of a novel human coronavirus, coined as human coronavirus-HKU1 (“CoV-HKU1”), isolated in Hong Kong. The virus belongs to the order Nidovirales of the family Coronaviridae, being a single-stranded RNA virus of positive polarity. Further study on nasopharyngeal aspirates from patients with community-acquired pneumonia has revealed that there are two genotypes, genotype A and genotype B, for this virus. In addition to the genomic sequences of these two genotypes, the invention provides the deduced amino acid sequences of the complete genome of the CoV-HKU1. The nucleotide sequences and deduced amino acid sequences of the CoV-HKU1 are useful in preventing, diagnosing and/or treating the infection by CoV-HKU1. Furthermore, the invention provides immunogenic and vaccine preparations using recombinant and chimeric forms as well as subunits of the CoV-HKU1 based on the nucleotide sequences and deduced amino acid sequences of the CoV-HKU1.

Abstract: The present invention relates to a diagnostic assay for the virus causing Severe Acute Respiratory Syndrome (SARS) in humans (“hSARS virus”). In particular, the invention relates to a real-time quantitative PCR assay for the detection of hSARS virus using reverse transcription and polymerase chain reaction. Specifically, the quantitative assay is a TaqMan® assay using the primers and probes constructed based on the genome of the hSARS virus. The invention further relates to a diagnostic kit that comprises nucleic acid molecules for the detection of the hSARS virus.

Abstract: The present invention provides an oral DNA composition for improving an impaired immunity associated with chronic infection of hepatitis B virus (HBV) and for suppressing transgene expression for a protrated period of time comprising an attenuated strain of bacterial cells which preferentially target phagocytic cells of the intestinal mucosa, and which serve as a vehicle for a plasmid vector carrying one or more genes or complementary DNA coding for at least a portion of a hepatitis B viral protein or peptide. Given orally, the DNA composition causes a transient and self-limiting infection of the intestinal tract through autolysis of the bacterial cells and release of the plasmid after gaining entry into infected host cells. A promotor contained within the plasmid allows for expression of the HBV gene(s) in the eurokaryotic environment, the viral products of which help to booster a cell-mediated immunity to clear the infection and reverse a state of immune tolerance characteristic of HBV chronic infection.

Abstract: The present invention provides an oral DNA composition for improving an impaired immunity associated with chronic infection of hepatitis B virus (HBV) and for suppressing transgene expression for a protrated period of time comprising an attenuated strain of bacterial cells which preferentially target phagocytic cells of the intestinal mucosa, and which serve as a vehicle for a plasmid vector carrying one or more genes or complementary DNA coding for at least a portion of a hepatitis B viral protein or peptide. Given orally, the DNA composition causes a transient and self-limiting infection of the intestinal tract through autolysis of the bacterial cells and release of the plasmid after gaining entry into infected host cells. A promotor contained within the plasmid allows for expression of the HBV gene(s) in the eurokaryotic environment, the viral products of which help to booster a cell-mediated immunity to clear the infection and reverse a state of immune tolerance characteristic of HBV chronic infection.

Abstract: Disclosed is an Aspergillus fumigatus AFAP1 polypeptide and DNA (RNA) encoding such AFAP1 polypeptide. Also provided is a procedure for producing such polypeptide by recombinant DNA techniques and a procedure for generating antibodies against the polypeptide. Also disclosed is a method of using such polypeptide and the antibodies against it for the diagnosis of deep infections of Aspergillus fumigatus by detecting the presence of the specific antibodies as well as the AFAP1 protein antigen in clinical specimens taken from suspected patients. Also provided are methods of using the AFAP1 DNA(RNA) or protein sequence to identify and to clone its homologous genes from other Aspergillus species. Therefore, the identification of AFAP1 homologous genes from other pathogenic fungi are made possible with this invention. Also described is a therapeutic regimen using the antibodies against Aspergillus infection. Also provided is a method of immunization against the infection of Aspergillosis.

Abstract: Disclosed is a Penicillium marneffei PMAP1 polypeptide and DNA(RNA) encoding such PMAP1 polypeptide. Also provided is a procedure for producing such polypeptide by recombinant DNA techniques and a procedure for generating antibodies against the said polypeptide. Also disclosed is a method of using such polypeptide and the antibodies against it for the diagnosis of systemic infections of Penicillium marneffei by detecting the presence of the specific antibodies as well as the PMAP1 protein antigen in clinical specimens taken from suspected patients. Also provided are methods of using the PMAP1 DNA(RNA) or protein sequence to identify and to clone its homologous genes from other pathogenic fungi. Therefore, the identification of PMAP1 homologous genes from other pathogenic fungi are made possible with this invention. Also described is a therapeutic regimen using the antibodies against Penicillium infection. Also provided is a method of immunization against the infection of Penicillium.