Aids is a serious problem to health due to lack of education about STD's and rampant poverty which leads to lack of protection during sex. Also bad health care means bad treatment and diagnosis of AIDS.
aids
Sorry bro, shedding is never a serious health problem unless there's a weird rash
In all but the poorest countries chronic diseases are the most serious health problem in poor countries.
AIDS
aids
Probably AIDS and HIV.
Premature birth is a major cause of serious health problems in neonates.
Pollution is a very serious problem.It is very bad for health for everyone
Lice infestation is a serious public health problem because some lice can carry organisms that cause other diseases, including relapsing fever, trench fever, and epidemic typhus.
intractable hiccups, which are hiccups that last months, can cause health problems and may be a sign of serious health problems.
depression
industrial smog