Meldeplikten gjelder fortsatt.

Because Norwegian often forms compound nouns as a single word.

• melde = report / notify
• plikt = duty / obligation
• meldeplikt = reporting obligation / duty to report
• meldeplikten = the reporting obligation

This is very normal in Norwegian. Where English may use several words, Norwegian often combines them into one noun.

The ending -en is the definite article attached to the noun.

So:

• en plikt = a duty
• plikten = the duty
• en meldeplikt = a reporting obligation
• meldeplikten = the reporting obligation

In Norwegian, the definite article is usually added to the end of the noun instead of being a separate word like the in English.

Because melde- here comes from the verb stem melde and is used to describe the type of obligation: an obligation to report.

This pattern is common in Norwegian compounds:

• kjøpekontrakt = purchase contract
• arbeidstid = working hours
• meldeplikt = duty to report

If you used melding, that would point more toward a report / a notification as a noun, which is a different structure and usually not the standard term here.

Gjelder is the present tense of gjelde, which often means:

• to apply
• to be valid
• to concern
• to be in force

In Meldeplikten gjelder fortsatt, it means something like:

• The reporting obligation still applies
• The reporting obligation is still in force

So this is a very common legal/official use of gjelde.

Fortsatt means still / continued / continuing, and putting it at the end is natural in Norwegian.

• Meldeplikten gjelder fortsatt. = The reporting obligation still applies.

This final position sounds neutral and natural. Norwegian adverbs can move around somewhat, but the sentence-final placement is very common here.

A close alternative would be:

• Meldeplikten gjelder fremdeles.

That means almost the same thing.

Yes. Depending on context, several English translations are possible:

• The reporting obligation still applies.
• The duty to report still applies.
• The reporting requirement is still in force.
• The notification requirement still remains in effect.

The best choice depends on whether the context is legal, administrative, medical, immigration-related, and so on.

Yes, it is fairly formal and often used in:

• laws
• regulations
• official letters
• public information
• healthcare or police contexts

It is not usually an everyday casual word unless the topic itself is official or legal.

Because Norwegian usually expresses the by adding a definite ending to the noun.

So instead of:

• the reporting obligation

Norwegian says:

• meldeplikten

This is one of the big structural differences from English. In many cases, the noun itself carries the meaning of the.

Yes. This is a very normal Norwegian sentence:

• Meldeplikten = subject
• gjelder = verb
• fortsatt = adverb

So the structure is basically:

Subject + Verb + Adverb

That is perfectly natural in a simple main clause.

Almost, yes.

• Meldeplikten gjelder fortsatt.
• Meldeplikten er fortsatt gjeldende.

Both mean that the obligation is still valid, but they are slightly different in style.

• gjelder fortsatt is straightforward and very common
• er fortsatt gjeldende sounds a bit more formal or bureaucratic

So in official language, either may appear, but gjelder fortsatt is very natural.

It would sound normal, but somewhat official because of the noun meldeplikt.

A Norwegian speaker would probably understand it immediately, especially in an official context. In everyday conversation, people might sometimes rephrase it more simply depending on the situation, but the original sentence itself is completely standard.