Helen E. Ambrose

Pneumocystis carinii f. sp. hominis DNA in Immunocompetent Health Care Workers in Contact with Patients with P. carinii Pneumonia

Miller, Robert F., Ambrose, Helen E., Wakefield, Ann E.

The possible transmission of Pneumocystis carinii f. sp. hominis from patients with P. carinii pneumonia to asymptomatic health care workers (HCW), with or without occupational exposure to human...

Probable Mother-to-Infant Transmission of Pneumocystis carinii f. sp. hominis Infection

Miller, Robert F., Ambrose, Helen E., Novelli, Vas, Wakefield, Ann E.

A mother and her 4.5-week-old infant had Pneumocystis carinii pneumonia contemporaneously. Genotyping of P. carinii f. sp. hominis DNA at three independent loci showed the same genotype in samples...

Genotypes of Pneumocystis jiroveci Isolates Obtained in Harare, Zimbabwe, and London, United Kingdom

Miller, Robert F., Lindley, Austin R., Ambrose, Helen E., Malin, Adam S., Wakefield, Ann E.

Isolates of Pneumocystis jiroveci from sulfa-exposed and nonexposed patients from London, United Kingdom, and Harare, Zimbabwe, were genotyped. At the dihydropteroate synthase (DHPS) locus, there was...

Pneumocystis carinii f. sp. hominis DNA in Immunocompetent Health Care Workers in Contact with Patients with P. carinii Pneumonia

Miller, Robert F., Ambrose, Helen E., Wakefield, Ann E.

The possible transmission of Pneumocystis carinii f. sp. hominis from patients with P. carinii pneumonia to asymptomatic health care workers (HCW), with or without occupational exposure to human...

Probable Mother-to-Infant Transmission of Pneumocystis carinii f. sp. hominis Infection

Miller, Robert F., Ambrose, Helen E., Novelli, Vas, Wakefield, Ann E.

A mother and her 4.5-week-old infant had Pneumocystis carinii pneumonia contemporaneously. Genotyping of P. carinii f. sp. hominis DNA at three independent loci showed the same genotype in samples...

Genotypes of Pneumocystis jiroveci Isolates Obtained in Harare, Zimbabwe, and London, United Kingdom

Miller, Robert F., Lindley, Austin R., Ambrose, Helen E., Malin, Adam S., Wakefield, Ann E.

Isolates of Pneumocystis jiroveci from sulfa-exposed and nonexposed patients from London, United Kingdom, and Harare, Zimbabwe, were genotyped. At the dihydropteroate synthase (DHPS) locus, there was...

α6-Integrin is expressed on germinal centre B cells and modifies growth of a B-cell line

Ambrose, Helen E, Wagner, Simon D

The production of high-affinity antibodies requires diversification of the antibody repertoire by somatic hypermutation followed by selection of those B cells bearing the highest affinity antibodies....