Maintaining a clean area is another means of combating the threat of
biological agents. Personnel should keep food in sealed containers or
covered to avoid infestation by vectors. They should bury garbage.
They should locate latrines away from dining facilities and sources of
Personnel should keep their immunization shots up to date. Disease
symptoms are less severe or are absent in individuals immunized
against that disease. While immunization cannot protect against all
biological agents, it does provide a means of protection against
several common diseases used as biological agents.
d. Standard Alarms to Signal a CB Attack.
The alarms for a chemical or biological attack should be given by
means not easily confused with other signals or sounds normally
encountered in combat. All who hear or see anyone else giving the
alarm should repeat the alarm swiftly throughout the unit, because
these alarms are limited in range.
If the automatic chemical agent alarms are in operation, detected
agents will trigger a visual and auditory alarm unit. The person who
sees or hears a signal from the alarm unit should mask immediately and
then augment this signal with the vocal signal, "GAS." In addition,
radio and telephone operators who hear the alarm "GAS" should
immediately mask and then relay the alarm over the unit radio and
The vocal alarm for any chemical or biological hazard or attack is the
word "GAS." Use of this term should be synonymous with the need to
put on the protective mask as quickly as possible. The person giving
the alarm should mask first and then shout "GAS" as loudly as
possible. Everyone hearing this alarm should immediately stop
breathing, mask, and then repeat the alarm. After relaying the alarm,
all personnel should get under overhead cover, if possible, to protect
themselves against possible contamination with liquid agents and from
the fragmentation effects of chemical or biological munitions.