Which hypothesis posits that asthma and allergies have increased because our environment has become cleaner, thus lowering our exposure to germs and, as a result, our immune system is less able to differentiate between harmful substances and less harmful irritants

answer:

there is no cure for hiv, although antiretroviral treatment can control the virus, meaning that people with hiv can live long and healthy lives. most research is looking for a functional cure where hiv is reduced to undetectable and harmless levels in the body permanently, but some residual virus may remain. most commonly hiv-antivirals are taken also known as nucleoside/nucleotide reverse transcriptase inhibitors (nrti's).

answer:

no

explanation:

why do you do this

answer:

yes

Explanation:

Yes all viruses can be cured, it just takes time for development.