Abstract
The immunological mechanisms responsible for overcoming infections with Babesia, an intra-erythrocytic protozoan, are not fully understood. Although high titres of specific anti-babesial antibodies have been observed in several species of animals1, and protection has been obtained by transfer of large volumes of recovery serum2, the role of antibody in the immune response to an infection is uncertain. The present study investigates the nature of B-cell participation during Babesia microti infections by observing the course of the disease in mice in which IgM production has been suppressed from birth and which contain no B cells. The results show that, in contrast to control mice, which develop and subsequently clear circulating parasitaemias, suppressed mice show an unexpected resistance to infection as reflected by a virtual absence of parasites in the peripheral circulation.
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Rosenberg, Y., Evans, C. Resistance of mice suppressed for IgM production to Babesia microti infection. Nature 281, 302–304 (1979). https://doi.org/10.1038/281302a0
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DOI: https://doi.org/10.1038/281302a0
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