Spontaneous Infection of <I>Hymenolepis nana</I> in Hamsters

Spontaneous testicular recrudescence of Syrian hamsters: role of stimulatory photoperiods.

The gonads of hamsters maintained in short photoperiods first undergo regression and then spontaneous recrudescence. The latter is indicative of refractoriness of the neuroendocrine axis to short day lengths. We tested the hypothesis that the absence of long-day stimulation contributes to the development of refractoriness to short photoperiods. Male Syrian hamsters were maintained for 26 weeks ...

Pathogenesis of vaccine strains of measles virus in suckling hamsters

Passive transfer of resistance to frambesial infection in hamsters.

The immune mechanism by which hamsters acquire resistance to infection with Treponema pertenue, the causative agent of frambesia, or yaws, has not been elucidated. Serum or cells (spleen or lymph node) obtained from hamsters resistant to frambesial infection were transferred to normal syngenic recipients, who are subsequently infected with T. pertenue. The following parameters were used to meas...

Effects of diazepam on Mycobacterium bovis-induced infection in hamsters.

The in utero exposure of hamsters to low doses of diazepam results in impaired host defense against Mycobacterium bovis during adulthood. Delayed developmental immunotoxicity, however, represents a specific situation that might not be general. The present experiment was undertaken to investigate the effects of diazepam on hamster resistance to M. bovis using adult animals. The effects of diazep...

Spontaneous Pneumothorax in H1N1 Infection.

Spontaneous pneumothorax is a very rare entity in H1N1 infection unless it is co-existent with other respiratory conditions especially COPD. The other factors are old age, children below 5 years and patients with ILD. The mortality rate goes high with pulmonary illness complicated by H1N1 infection in smokers and in pregnant women. This is the first reported case of H1N1 infection with Spontane...