Infected Air-borne Particles Liberated on Opening Screw-capped Bottles

A Method of Filling Screw-Capped Bottles with Fluids under Sterile Conditions

During the course of a recent experiment which large quantities of bacteriophage required, screw-capped bottles were used for filling and distribution. As these bottles na proved very satisfactory and the method of n ing is simple and inexpensive a short descrip^1 is given below. ^ Bottles of required size with well-fitting scre caps and of suitable glass are selected. For 0 purpose we used one...

Air-Borne Infection

Hazards to laboratory staff in centrifuging screw-capped containers.

Reports on infectious diseases acquired by bacteriological laboratory staff from their work emphasize the risk of contracting tuberculosis by handling tuberculous specimens. Recent advances in the chemotherapy of tuberculosis have greatly increased the amount of bacteriology done in routine hospital laboratories, primary culture and then sensitivity tests being required where previously a direc...

Observation of trapping and transporting air- borne absorbing particles with a single optical beam

We demonstrate optical trapping and manipulation of micronsized absorbing air-borne particles with a single focused Gaussian beam. Transportation of trapped nonspherical particles from one beam to another is realized, and the underlying mechanism for the trapping is discussed by considering the combined action of several forces. By employing a specially-designed optical bottle beam, we observe ...

Effect of airway opening on production of exhaled particles.

The technique of sampling exhaled air is attractive because it is noninvasive and so allows repeated sampling with ease and no risk for the patient. Knowledge of the biomarkers' origin is important to correctly understand and interpret the data. Endogenous particles, formed in the airways, are exhaled and reflect chemical composition of the respiratory tract lining fluid. However, the formation...