A system, method, apparatus and diagnostic test for Plasmodium vivax, to determine a likelihood of a specific timing of infection by P. vivax in a subject, and hence identify individuals with a high probability of being infected with otherwise undetectable liver-stage hypnozoites. The system, method, apparatus and diagnostic test relate to the identification of hypnozoites (“dormant” liver-stages), or at least of the likelihood of the subject being so infected. Optionally and preferably, the specific timing relates to recent infections, for example within the last 9 months.

The invention provides compositions and methods for preventing or reducing the severity of malaria.

The invention provides methods of treating or preventing malaria comprising administering to an animal an effective amount of a compound of formula I:

Q-YR.sup.1R.sup.2(I),

wherein Q, Y, R.sup.1, and R.sup.2 are as described herein. Methods of inhibiting a plasmodial surface anion channel of a parasite in an animal are also provided. The invention also provides pharmaceutical compositions comprising a compound represented by formula I in combination with any one or more compounds represented by formulas II, V, and VI. Use of the pharmaceutical compositions for treating or preventing malaria or for inhibiting a plasmodial surface anion channel in animals including humans are also provided. Also provided by the invention are clag3 amino acid sequences and related nucleic acids, vectors, host cells, populations of cells, antibodies, and pharmaceutical compositions.

The present invention describes methods of identifying high-risk populations or individuals who have positive serology for T. gondii. These methods include obtaining a biological sample from a subject; determining the level of T. gondii cyst antigen antibody in the biological sample; and characterizing the biological sample in at least one of three categories.

The present invention describes methods of identifying high-risk populations or individuals who have positive serology for T. gondii. These methods include obtaining a biological sample from a subject; determining the level of T. gondii cyst antigen antibody in the biological sample; and characterizing the biological sample in at least one of three categories.

The present description relates to malaria vaccines comprising Plasmodium falciparum (Pf) polypeptide complexes and methods of producing the same. The Pf polypeptides in complexes or in a partially complexed arrangement may comprise two or more of the following polypeptides: PfRipr, PfCyrPa and PfRh5. Drosophila cells and expression vectors are also described.

This invention relates to compositions (e.g. vaccine compositions) which can be used to provide a subject with protective immunity against a parasite infection. The compositions comprise: (i) an immunologically effective amount of a nucleic acid (e.g. a nucleic acid-based vaccine) comprising a sequence which encodes a parasite macrophage migration inhibitory factor (MIF) antigen; (ii) a parasite MIF antigen; or (iii) an antibody which specifically binds to a parasite MIF antigen. The compositions may be used to treat infections and diseases caused by parasitic protozoans, such as a Plasmodium parasite, or parasitic helminths.

Methods of treating acute thyroid eye disease (TED) by administering a inhibitor, e.g., a VEGF-A inhibitor, e.g., an anti-VEGF antibody, optionally in combination with hyaluronidase, by periorbital or intraorbital injection. Also compositions comprising a VEGF inhibitor and hyaluronidase.

The present invention includes antibodies and antigen-binding fragments thereof that specifically bind to Plasmodium falciparum reticulocyte binding protein homologue 5 (PfRH5), compositions thereof and methods of making such antibodies, fragments and compositions. Method and compositions for treating, preventing or diagnosing Plasmodium falciparum infection and malaria are also part of the present invention.

The present invention provides protease-cleavage resistant molecules comprising Shiga toxin effector polypeptides capable of exhibiting potent, Shiga toxin functions (e.g. subcellular routing and cytotoxicity). The present invention also provides protease-cleavage resistant, cell-targeting molecules for targeting specific cell types, e.g., infected or malignant cells. Certain molecules of the present invention are cytotoxic, and certain cell-targeting molecules of the present invention may be used for the targeted killing of specific cell types and the treatment of a variety of diseases, disorders, and conditions, including cancers, tumors, growth abnormalities, immune disorders, and microbial infections. Certain cell-targeting molecules of the invention exhibit improved, in vivo tolerability as compared to related cell-targeting molecules comprising protease-cleavage sensitive, wild-type, Shiga toxin effector polypeptides. The cell-targeting molecules of the invention can deliver additional materials, such as, e.g., antigens, cytotoxic agents, and detection-promoting agents, into the interiors of target cells.