Drug Use Behaviors and the Risk of HIV Infection Among Drug Users in China Between 2014 and 2021: Cross-Sectional Study.

Due to the widespread use of new type of drugs users through nasal inhalation or swallowing, the number of injecting drug users has decreased, but currently, there is an increasing trend for drug users to inject new drugs in order to obtain stronger pleasure, which is consistent with reports from other countries [ 25 ].

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The number of heroin users has shown a decreasing trend year by year, while new drugs have gradually replaced heroin.

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