Patient isolation is a key component of these precautions, targeting pathogens such as M. tuberculosis (TB), antibiotic-resistant bacteria and certain viruses.
With rare exceptions, U.S. forces have not targeted civilians directly and have taken precautions to avoid loss of civilian life.
The experience caused Albrecht to take extreme safety precautions, especially when the Baader-Meinhof terrorists targeted business leaders in West Germany.
Met police commissioner Sir Bernard Hogan-Howe said there had been "no intelligence" to suggest the march or the city would be targeted, urging people to join in but "take reasonable precaution".
Are there precautions you take to protect people likely to be targeted or attacked as part of their training?
So far HRW had sent two letters to Saudi authorities on the topic and met with officials at the embassy in the US, he said, but had yet to receive "any substantial replies" to queries over the targeting of strikes and precautions taken to minimize civilian casualties.
He said the packages were not targeted at the general public but said it would be "sensible to take precautions".
The Russian foreign minister claimed that Moscow was taking "all necessary precautions... to advise the Syrian army to be very specific and very targeted in its actions towards Nusra".
Taking precautions against cyber-attacks has become essential, particularly among financial institutions, which are frequently targeted for attack.
"As a precaution, we are alerting you that your Twitter account is one of a small group of accounts that may have been targeted by state-sponsored actors," said Twitter in the email to affected users.
