Cloning of humans is definitely a serious (mortal) sin.
Yes, it is a very serious illness too.
"Todd was shocked to find that the cause of his fatigue was a serious illness."
weakness to a certain degree. if it is a serious condition, it then becomes a illness.
Mortal sin
Viral illness 2 weeks, Bacterial with treatment 2 weeks unless serious. Serious illnesses are not included in my answer.
Mortal sins are more serious than venial sins, and they have more serious consequences: With mortal sin, the life of grace is lost and the sinner is in danger of hell. With venial sin, the life of grace is weakened but not lost. Even so, venial sins should not be taken lightly, since habitual venial sins can harden one to commit mortal sin.
deaf
smallpoks
It is extremely serious! The baby is in mortal danger.
he had a serious case of cancer
Adam Smith died on July 17, 1790 in Edinburgh, Scotland. The cause of his death was not definitively recorded, but he is believed to have died from a respiratory illness, likely pneumonia.