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Any preventative solutions that I might proffer would have to be specific to the particular pandemic of the moment, sir(s).
Your question is unclear. Should a laboratory deal with the HIV virus there would be stringent measures in place to prevent such an occurrence.
That would be inclusion.
Yes! My older sister's boyfriend has it (and his head is HUGE!!)
Mirrored
A door is undercut sometimes in a very small room such as a closet to allow airflow in or out of the room without putting in ductwork and air vents into the room. Sometimes a grille is put in the door to serve the same purpose. Undercuts and grilles in doors are not always allowed in rooms like utility rooms or storage rooms because the room might have a fire rating and the door would then need to be fire rated. If an undercut is allowed make sure that the door threshold doesn't then get installed and cut off any air flow that might have been needed with the undercut.
Many Chinese laborers accepted lower wages.
The city's population was gripped by yet another springtime occurrence of the flu. The occurrence of an earthquake in an area that never had one left the people shaken and worried. Scientists have found a high occurrence of HIV among drug users who share needles. The principle told the students that if there was another occurrence of fighting in the classroom, the whole class would be expelled.
The inclusion of a parity bit extends the message length. There are more bits that can be in error since the parity bit is now included. The parity bit may be in error when there are no errors in the corresponding data bits. Therefore, the inclusion of a parity bit with each character would change the probability of receiving a correct message.
This would be a rare occurrence, indeed.
An EXIGENT CIRCUMSTANCE - Emergency condition. Those circumstances that would cause a reasonable person to believe that prompt action was necessary to prevent some unwanted consequence. For further discussion - see link below.
By giving free rein to diverse opinions.