[Dirofilariasis in the Nizhny Novgorod Region].

The paper presents the results of clinical, epidemiological, and epizootological analyses of local cases of human dirofilariasis in the Nizhny Novgorod Region, which suggest that natural and climatic changes, namely the abnormally hot summer in 2010-2011 and increasing migratory processes among human beings and animals, open up possibilities for forming foci ofdirofilariasis outside habitats of Dirofilaria repens.

[A possible association of fatal pneumonia with mutations of pandemic influenza A/H1N1 sw1 virus in the receptor-binding site of the HA1 subunit].

The paper gives the results of sequence analysis of 150 positive samples in real-time RT-PCR, including 47 autopsy materials from patients (including 10 pregnant women), who died from fatal pneumonia mainly in November-December 2009, in whom the lifetime etiological diagnosis had not been made and hence no early etiotropic therapy performed. 70% of the primary materials from the deceased patients were found to have pandemic influenza A(H1N1) v mutants in the lung tissue with D222G (15%), D222N (15%), D222E (2%) substitutions, as well as a mixture of mutants (38%). Nasopharyngeal lavages from 3 Chukotka deceased patients exhibited only consensus (nonmutant) D222 virus variants; there was a mixture of consensus and mutant virus variants in the trachea and a mixture of mutant ones in the lung.

[Regional problems in the provision of hygienic reliability of drinking water consumption].

The paper gives the recent results of researches made at the F.F. Erisman Federal Hygiene Research Center on water-supply hygiene.

[Organization of sanitary and epidemiological supervision of radiation exposure during x-ray studies in Novgorod region].

Providing up-to-date X-ray equipment for medical institutions of Novgorod region could improve efficiency of radiologic diagnosis. Introducing individual radiation monitoring of radiation dose for X-ray staffers and for patients results in objective assessment of absorbed radiation doses for lower risk of long-term accidental effects.

[The status and dynamics of occupational morbidity in the Novgorod region].

The article deals with results obtained by analysis of occupational morbidity by registration materials according to Russian Health Ministry Order No 176 (05/28/01).